20888973080

素因数分解:

$2^3\times 5^1\times {\mathrm{37}}^1\times {\mathrm{331}}^1\times {\mathrm{42641}}^1$

素因数の和:43020

約数の個数: 64

約数和(自身を含む): 48417432480

約数和(自身を除く): 27528459400

約数列:

[1, 2, 4, 5, 8, 10, 20, 37, 40, 74, 148, 185, 296, 331, 370, 662, 740, 1324, 1480, 1655, 2648, 3310, 6620, 12247, 13240, 24494, 42641, 48988, 61235, 85282, 97976, 122470, 170564, 213205, 244940, 341128, 426410, 489880, 852820, 1577717, 1705640, 3155434, 6310868, 7888585, 12621736, 14114171, 15777170, 28228342, 31554340, 56456684, 63108680, 70570855, 112913368, 141141710, 282283420, 522224327, 564566840, 1044448654, 2088897308, 2611121635, 4177794616, 5222243270, 10444486540, 20888973080]

約数ペア:

[(1, 20888973080), (2, 10444486540), (4, 5222243270), (5, 4177794616), (8, 2611121635), (10, 2088897308), (20, 1044448654), (37, 564566840), (40, 522224327), (74, 282283420), (148, 141141710), (185, 112913368), (296, 70570855), (331, 63108680), (370, 56456684), (662, 31554340), (740, 28228342), (1324, 15777170), (1480, 14114171), (1655, 12621736), (2648, 7888585), (3310, 6310868), (6620, 3155434), (12247, 1705640), (13240, 1577717), (24494, 852820), (42641, 489880), (48988, 426410), (61235, 341128), (85282, 244940), (97976, 213205), (122470, 170564)]