20112121100

素因数分解:

$2^2\times 5^2\times {\mathrm{31}}^1\times {\mathrm{1487}}^1\times {\mathrm{4363}}^1$

素因数の和:5895

約数の個数: 72

約数和(自身を含む): 45091780608

約数和(自身を除く): 24979659508

約数列:

[1, 2, 4, 5, 10, 20, 25, 31, 50, 62, 100, 124, 155, 310, 620, 775, 1487, 1550, 2974, 3100, 4363, 5948, 7435, 8726, 14870, 17452, 21815, 29740, 37175, 43630, 46097, 74350, 87260, 92194, 109075, 135253, 148700, 184388, 218150, 230485, 270506, 436300, 460970, 541012, 676265, 921940, 1152425, 1352530, 2304850, 2705060, 3381325, 4609700, 6487781, 6762650, 12975562, 13525300, 25951124, 32438905, 64877810, 129755620, 162194525, 201121211, 324389050, 402242422, 648778100, 804484844, 1005606055, 2011212110, 4022424220, 5028030275, 10056060550, 20112121100]

約数ペア:

[(1, 20112121100), (2, 10056060550), (4, 5028030275), (5, 4022424220), (10, 2011212110), (20, 1005606055), (25, 804484844), (31, 648778100), (50, 402242422), (62, 324389050), (100, 201121211), (124, 162194525), (155, 129755620), (310, 64877810), (620, 32438905), (775, 25951124), (1487, 13525300), (1550, 12975562), (2974, 6762650), (3100, 6487781), (4363, 4609700), (5948, 3381325), (7435, 2705060), (8726, 2304850), (14870, 1352530), (17452, 1152425), (21815, 921940), (29740, 676265), (37175, 541012), (43630, 460970), (46097, 436300), (74350, 270506), (87260, 230485), (92194, 218150), (109075, 184388), (135253, 148700)]