20970250

素因数分解:

$2^1\times 5^3\times 7^1\times {\mathrm{23}}^1\times {\mathrm{521}}^1$

素因数の和:568

約数の個数: 64

約数和(自身を含む): 46904832

約数和(自身を除く): 25934582

約数列:

[1, 2, 5, 7, 10, 14, 23, 25, 35, 46, 50, 70, 115, 125, 161, 175, 230, 250, 322, 350, 521, 575, 805, 875, 1042, 1150, 1610, 1750, 2605, 2875, 3647, 4025, 5210, 5750, 7294, 8050, 11983, 13025, 18235, 20125, 23966, 26050, 36470, 40250, 59915, 65125, 83881, 91175, 119830, 130250, 167762, 182350, 299575, 419405, 455875, 599150, 838810, 911750, 1497875, 2097025, 2995750, 4194050, 10485125, 20970250]

約数ペア:

[(1, 20970250), (2, 10485125), (5, 4194050), (7, 2995750), (10, 2097025), (14, 1497875), (23, 911750), (25, 838810), (35, 599150), (46, 455875), (50, 419405), (70, 299575), (115, 182350), (125, 167762), (161, 130250), (175, 119830), (230, 91175), (250, 83881), (322, 65125), (350, 59915), (521, 40250), (575, 36470), (805, 26050), (875, 23966), (1042, 20125), (1150, 18235), (1610, 13025), (1750, 11983), (2605, 8050), (2875, 7294), (3647, 5750), (4025, 5210)]