20570940

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{59}}^1\times {\mathrm{149}}^1$

素因数の和:236

約数の個数: 144

約数和(自身を含む): 68796000

約数和(自身を除く): 48225060

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 13, 15, 18, 20, 26, 30, 36, 39, 45, 52, 59, 60, 65, 78, 90, 117, 118, 130, 149, 156, 177, 180, 195, 234, 236, 260, 295, 298, 354, 390, 447, 468, 531, 585, 590, 596, 708, 745, 767, 780, 885, 894, 1062, 1170, 1180, 1341, 1490, 1534, 1770, 1788, 1937, 2124, 2235, 2301, 2340, 2655, 2682, 2980, 3068, 3540, 3835, 3874, 4470, 4602, 5310, 5364, 5811, 6705, 6903, 7670, 7748, 8791, 8940, 9204, 9685, 10620, 11505, 11622, 13410, 13806, 15340, 17433, 17582, 19370, 23010, 23244, 26373, 26820, 27612, 29055, 34515, 34866, 35164, 38740, 43955, 46020, 52746, 58110, 69030, 69732, 79119, 87165, 87910, 105492, 114283, 116220, 131865, 138060, 158238, 174330, 175820, 228566, 263730, 316476, 342849, 348660, 395595, 457132, 527460, 571415, 685698, 791190, 1028547, 1142830, 1371396, 1582380, 1714245, 2057094, 2285660, 3428490, 4114188, 5142735, 6856980, 10285470, 20570940]

約数ペア:

[(1, 20570940), (2, 10285470), (3, 6856980), (4, 5142735), (5, 4114188), (6, 3428490), (9, 2285660), (10, 2057094), (12, 1714245), (13, 1582380), (15, 1371396), (18, 1142830), (20, 1028547), (26, 791190), (30, 685698), (36, 571415), (39, 527460), (45, 457132), (52, 395595), (59, 348660), (60, 342849), (65, 316476), (78, 263730), (90, 228566), (117, 175820), (118, 174330), (130, 158238), (149, 138060), (156, 131865), (177, 116220), (180, 114283), (195, 105492), (234, 87910), (236, 87165), (260, 79119), (295, 69732), (298, 69030), (354, 58110), (390, 52746), (447, 46020), (468, 43955), (531, 38740), (585, 35164), (590, 34866), (596, 34515), (708, 29055), (745, 27612), (767, 26820), (780, 26373), (885, 23244), (894, 23010), (1062, 19370), (1170, 17582), (1180, 17433), (1341, 15340), (1490, 13806), (1534, 13410), (1770, 11622), (1788, 11505), (1937, 10620), (2124, 9685), (2235, 9204), (2301, 8940), (2340, 8791), (2655, 7748), (2682, 7670), (2980, 6903), (3068, 6705), (3540, 5811), (3835, 5364), (3874, 5310), (4470, 4602)]