20015450

素因数分解:

$2^1\times 5^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{83}}^1$

素因数の和:168

約数の個数: 96

約数和(自身を含む): 47246976

約数和(自身を除く): 27231526

約数列:

[1, 2, 5, 7, 10, 13, 14, 25, 26, 35, 50, 53, 65, 70, 83, 91, 106, 130, 166, 175, 182, 265, 325, 350, 371, 415, 455, 530, 581, 650, 689, 742, 830, 910, 1079, 1162, 1325, 1378, 1855, 2075, 2158, 2275, 2650, 2905, 3445, 3710, 4150, 4399, 4550, 4823, 5395, 5810, 6890, 7553, 8798, 9275, 9646, 10790, 14525, 15106, 17225, 18550, 21995, 24115, 26975, 29050, 30793, 34450, 37765, 43990, 48230, 53950, 57187, 61586, 75530, 109975, 114374, 120575, 153965, 188825, 219950, 241150, 285935, 307930, 377650, 400309, 571870, 769825, 800618, 1429675, 1539650, 2001545, 2859350, 4003090, 10007725, 20015450]

約数ペア:

[(1, 20015450), (2, 10007725), (5, 4003090), (7, 2859350), (10, 2001545), (13, 1539650), (14, 1429675), (25, 800618), (26, 769825), (35, 571870), (50, 400309), (53, 377650), (65, 307930), (70, 285935), (83, 241150), (91, 219950), (106, 188825), (130, 153965), (166, 120575), (175, 114374), (182, 109975), (265, 75530), (325, 61586), (350, 57187), (371, 53950), (415, 48230), (455, 43990), (530, 37765), (581, 34450), (650, 30793), (689, 29050), (742, 26975), (830, 24115), (910, 21995), (1079, 18550), (1162, 17225), (1325, 15106), (1378, 14525), (1855, 10790), (2075, 9646), (2158, 9275), (2275, 8798), (2650, 7553), (2905, 6890), (3445, 5810), (3710, 5395), (4150, 4823), (4399, 4550)]