644620410

素因数分解:

$2^1\times 3^3\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{619}}^1$

素因数の和:690

約数の個数: 256

約数和(自身を含む): 2142720000

約数和(自身を除く): 1498099590

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 14, 15, 18, 19, 21, 27, 29, 30, 35, 38, 42, 45, 54, 57, 58, 63, 70, 87, 90, 95, 105, 114, 126, 133, 135, 145, 171, 174, 189, 190, 203, 210, 261, 266, 270, 285, 290, 315, 342, 378, 399, 406, 435, 513, 522, 551, 570, 609, 619, 630, 665, 783, 798, 855, 870, 945, 1015, 1026, 1102, 1197, 1218, 1238, 1305, 1330, 1566, 1653, 1710, 1827, 1857, 1890, 1995, 2030, 2394, 2565, 2610, 2755, 3045, 3095, 3306, 3591, 3654, 3714, 3857, 3915, 3990, 4333, 4959, 5130, 5481, 5510, 5571, 5985, 6090, 6190, 7182, 7714, 7830, 8265, 8666, 9135, 9285, 9918, 10962, 11142, 11571, 11761, 11970, 12999, 14877, 16530, 16713, 17951, 17955, 18270, 18570, 19285, 21665, 23142, 23522, 24795, 25998, 27405, 27855, 29754, 33426, 34713, 35283, 35902, 35910, 38570, 38997, 43330, 49590, 53853, 54810, 55710, 57855, 58805, 64995, 69426, 70566, 74385, 77994, 82327, 83565, 89755, 104139, 105849, 107706, 115710, 116991, 117610, 125657, 129990, 148770, 161559, 164654, 167130, 173565, 176415, 179510, 194985, 208278, 211698, 233982, 246981, 251314, 269265, 317547, 323118, 341069, 347130, 352830, 376971, 389970, 411635, 484677, 493962, 520695, 529245, 538530, 584955, 628285, 635094, 682138, 740943, 753942, 807795, 823270, 969354, 1023207, 1041390, 1058490, 1130913, 1169910, 1234905, 1256570, 1481886, 1587735, 1615590, 1705345, 1884855, 2046414, 2222829, 2261826, 2387483, 2423385, 2469810, 3069621, 3175470, 3392739, 3410690, 3704715, 3769710, 4445658, 4774966, 4846770, 5116035, 5654565, 6139242, 6785478, 7162449, 7409430, 9208863, 10232070, 11114145, 11309130, 11937415, 14324898, 15348105, 16963695, 18417726, 21487347, 22228290, 23874830, 30696210, 33927390, 35812245, 42974694, 46044315, 64462041, 71624490, 92088630, 107436735, 128924082, 214873470, 322310205, 644620410]

約数ペア:

[(1, 644620410), (2, 322310205), (3, 214873470), (5, 128924082), (6, 107436735), (7, 92088630), (9, 71624490), (10, 64462041), (14, 46044315), (15, 42974694), (18, 35812245), (19, 33927390), (21, 30696210), (27, 23874830), (29, 22228290), (30, 21487347), (35, 18417726), (38, 16963695), (42, 15348105), (45, 14324898), (54, 11937415), (57, 11309130), (58, 11114145), (63, 10232070), (70, 9208863), (87, 7409430), (90, 7162449), (95, 6785478), (105, 6139242), (114, 5654565), (126, 5116035), (133, 4846770), (135, 4774966), (145, 4445658), (171, 3769710), (174, 3704715), (189, 3410690), (190, 3392739), (203, 3175470), (210, 3069621), (261, 2469810), (266, 2423385), (270, 2387483), (285, 2261826), (290, 2222829), (315, 2046414), (342, 1884855), (378, 1705345), (399, 1615590), (406, 1587735), (435, 1481886), (513, 1256570), (522, 1234905), (551, 1169910), (570, 1130913), (609, 1058490), (619, 1041390), (630, 1023207), (665, 969354), (783, 823270), (798, 807795), (855, 753942), (870, 740943), (945, 682138), (1015, 635094), (1026, 628285), (1102, 584955), (1197, 538530), (1218, 529245), (1238, 520695), (1305, 493962), (1330, 484677), (1566, 411635), (1653, 389970), (1710, 376971), (1827, 352830), (1857, 347130), (1890, 341069), (1995, 323118), (2030, 317547), (2394, 269265), (2565, 251314), (2610, 246981), (2755, 233982), (3045, 211698), (3095, 208278), (3306, 194985), (3591, 179510), (3654, 176415), (3714, 173565), (3857, 167130), (3915, 164654), (3990, 161559), (4333, 148770), (4959, 129990), (5130, 125657), (5481, 117610), (5510, 116991), (5571, 115710), (5985, 107706), (6090, 105849), (6190, 104139), (7182, 89755), (7714, 83565), (7830, 82327), (8265, 77994), (8666, 74385), (9135, 70566), (9285, 69426), (9918, 64995), (10962, 58805), (11142, 57855), (11571, 55710), (11761, 54810), (11970, 53853), (12999, 49590), (14877, 43330), (16530, 38997), (16713, 38570), (17951, 35910), (17955, 35902), (18270, 35283), (18570, 34713), (19285, 33426), (21665, 29754), (23142, 27855), (23522, 27405), (24795, 25998)]