20457570

素因数分解:

$2^1\times 3^1\times 5^1\times 7^1\times {\mathrm{61}}^1\times {\mathrm{1597}}^1$

素因数の和:1675

約数の個数: 64

約数和(自身を含む): 57067776

約数和(自身を除く): 36610206

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 30, 35, 42, 61, 70, 105, 122, 183, 210, 305, 366, 427, 610, 854, 915, 1281, 1597, 1830, 2135, 2562, 3194, 4270, 4791, 6405, 7985, 9582, 11179, 12810, 15970, 22358, 23955, 33537, 47910, 55895, 67074, 97417, 111790, 167685, 194834, 292251, 335370, 487085, 584502, 681919, 974170, 1363838, 1461255, 2045757, 2922510, 3409595, 4091514, 6819190, 10228785, 20457570]

約数ペア:

[(1, 20457570), (2, 10228785), (3, 6819190), (5, 4091514), (6, 3409595), (7, 2922510), (10, 2045757), (14, 1461255), (15, 1363838), (21, 974170), (30, 681919), (35, 584502), (42, 487085), (61, 335370), (70, 292251), (105, 194834), (122, 167685), (183, 111790), (210, 97417), (305, 67074), (366, 55895), (427, 47910), (610, 33537), (854, 23955), (915, 22358), (1281, 15970), (1597, 12810), (1830, 11179), (2135, 9582), (2562, 7985), (3194, 6405), (4270, 4791)]