644813910

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^2\times {\mathrm{1907}}^1$

素因数の和:1967

約数の個数: 144

約数和(自身を含む): 1918936656

約数和(自身を除く): 1274122746

約数列:

[1, 2, 3, 5, 6, 9, 10, 13, 15, 17, 18, 26, 30, 34, 39, 45, 51, 65, 78, 85, 90, 102, 117, 130, 153, 170, 195, 221, 234, 255, 289, 306, 390, 442, 510, 578, 585, 663, 765, 867, 1105, 1170, 1326, 1445, 1530, 1734, 1907, 1989, 2210, 2601, 2890, 3315, 3757, 3814, 3978, 4335, 5202, 5721, 6630, 7514, 8670, 9535, 9945, 11271, 11442, 13005, 17163, 18785, 19070, 19890, 22542, 24791, 26010, 28605, 32419, 33813, 34326, 37570, 49582, 56355, 57210, 64838, 67626, 74373, 85815, 97257, 112710, 123955, 148746, 162095, 169065, 171630, 194514, 223119, 247910, 291771, 324190, 338130, 371865, 421447, 446238, 486285, 551123, 583542, 743730, 842894, 972570, 1102246, 1115595, 1264341, 1458855, 1653369, 2107235, 2231190, 2528682, 2755615, 2917710, 3306738, 3793023, 4214470, 4960107, 5511230, 6321705, 7164599, 7586046, 8266845, 9920214, 12643410, 14329198, 16533690, 18965115, 21493797, 24800535, 35822995, 37930230, 42987594, 49601070, 64481391, 71645990, 107468985, 128962782, 214937970, 322406955, 644813910]

約数ペア:

[(1, 644813910), (2, 322406955), (3, 214937970), (5, 128962782), (6, 107468985), (9, 71645990), (10, 64481391), (13, 49601070), (15, 42987594), (17, 37930230), (18, 35822995), (26, 24800535), (30, 21493797), (34, 18965115), (39, 16533690), (45, 14329198), (51, 12643410), (65, 9920214), (78, 8266845), (85, 7586046), (90, 7164599), (102, 6321705), (117, 5511230), (130, 4960107), (153, 4214470), (170, 3793023), (195, 3306738), (221, 2917710), (234, 2755615), (255, 2528682), (289, 2231190), (306, 2107235), (390, 1653369), (442, 1458855), (510, 1264341), (578, 1115595), (585, 1102246), (663, 972570), (765, 842894), (867, 743730), (1105, 583542), (1170, 551123), (1326, 486285), (1445, 446238), (1530, 421447), (1734, 371865), (1907, 338130), (1989, 324190), (2210, 291771), (2601, 247910), (2890, 223119), (3315, 194514), (3757, 171630), (3814, 169065), (3978, 162095), (4335, 148746), (5202, 123955), (5721, 112710), (6630, 97257), (7514, 85815), (8670, 74373), (9535, 67626), (9945, 64838), (11271, 57210), (11442, 56355), (13005, 49582), (17163, 37570), (18785, 34326), (19070, 33813), (19890, 32419), (22542, 28605), (24791, 26010)]