20126813720

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{463}}^1\times {\mathrm{83597}}^1$

素因数の和:84084

約数の個数: 64

約数和(自身を含む): 48874734720

約数和(自身を除く): 28747921000

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 463, 520, 926, 1852, 2315, 3704, 4630, 6019, 9260, 12038, 18520, 24076, 30095, 48152, 60190, 83597, 120380, 167194, 240760, 334388, 417985, 668776, 835970, 1086761, 1671940, 2173522, 3343880, 4347044, 5433805, 8694088, 10867610, 21735220, 38705411, 43470440, 77410822, 154821644, 193527055, 309643288, 387054110, 503170343, 774108220, 1006340686, 1548216440, 2012681372, 2515851715, 4025362744, 5031703430, 10063406860, 20126813720]

約数ペア:

[(1, 20126813720), (2, 10063406860), (4, 5031703430), (5, 4025362744), (8, 2515851715), (10, 2012681372), (13, 1548216440), (20, 1006340686), (26, 774108220), (40, 503170343), (52, 387054110), (65, 309643288), (104, 193527055), (130, 154821644), (260, 77410822), (463, 43470440), (520, 38705411), (926, 21735220), (1852, 10867610), (2315, 8694088), (3704, 5433805), (4630, 4347044), (6019, 3343880), (9260, 2173522), (12038, 1671940), (18520, 1086761), (24076, 835970), (30095, 668776), (48152, 417985), (60190, 334388), (83597, 240760), (120380, 167194)]