20275020

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{73}}^1\times {\mathrm{1543}}^1$

素因数の和:1631

約数の個数: 72

約数和(自身を含む): 62383776

約数和(自身を除く): 42108756

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 73, 90, 146, 180, 219, 292, 365, 438, 657, 730, 876, 1095, 1314, 1460, 1543, 2190, 2628, 3086, 3285, 4380, 4629, 6172, 6570, 7715, 9258, 13140, 13887, 15430, 18516, 23145, 27774, 30860, 46290, 55548, 69435, 92580, 112639, 138870, 225278, 277740, 337917, 450556, 563195, 675834, 1013751, 1126390, 1351668, 1689585, 2027502, 2252780, 3379170, 4055004, 5068755, 6758340, 10137510, 20275020]

約数ペア:

[(1, 20275020), (2, 10137510), (3, 6758340), (4, 5068755), (5, 4055004), (6, 3379170), (9, 2252780), (10, 2027502), (12, 1689585), (15, 1351668), (18, 1126390), (20, 1013751), (30, 675834), (36, 563195), (45, 450556), (60, 337917), (73, 277740), (90, 225278), (146, 138870), (180, 112639), (219, 92580), (292, 69435), (365, 55548), (438, 46290), (657, 30860), (730, 27774), (876, 23145), (1095, 18516), (1314, 15430), (1460, 13887), (1543, 13140), (2190, 9258), (2628, 7715), (3086, 6570), (3285, 6172), (4380, 4629)]