20964450

素因数分解:

$2^1\times 3^1\times 5^2\times {\mathrm{13}}^2\times {\mathrm{827}}^1$

素因数の和:868

約数の個数: 72

約数和(自身を含む): 56366928

約数和(自身を除く): 35402478

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 25, 26, 30, 39, 50, 65, 75, 78, 130, 150, 169, 195, 325, 338, 390, 507, 650, 827, 845, 975, 1014, 1654, 1690, 1950, 2481, 2535, 4135, 4225, 4962, 5070, 8270, 8450, 10751, 12405, 12675, 20675, 21502, 24810, 25350, 32253, 41350, 53755, 62025, 64506, 107510, 124050, 139763, 161265, 268775, 279526, 322530, 419289, 537550, 698815, 806325, 838578, 1397630, 1612650, 2096445, 3494075, 4192890, 6988150, 10482225, 20964450]

約数ペア:

[(1, 20964450), (2, 10482225), (3, 6988150), (5, 4192890), (6, 3494075), (10, 2096445), (13, 1612650), (15, 1397630), (25, 838578), (26, 806325), (30, 698815), (39, 537550), (50, 419289), (65, 322530), (75, 279526), (78, 268775), (130, 161265), (150, 139763), (169, 124050), (195, 107510), (325, 64506), (338, 62025), (390, 53755), (507, 41350), (650, 32253), (827, 25350), (845, 24810), (975, 21502), (1014, 20675), (1654, 12675), (1690, 12405), (1950, 10751), (2481, 8450), (2535, 8270), (4135, 5070), (4225, 4962)]