66461240

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{157}}^1\times {\mathrm{557}}^1$

素因数の和:744

約数の個数: 64

約数和(自身を含む): 158695200

約数和(自身を除く): 92233960

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 95, 152, 157, 190, 314, 380, 557, 628, 760, 785, 1114, 1256, 1570, 2228, 2785, 2983, 3140, 4456, 5570, 5966, 6280, 10583, 11140, 11932, 14915, 21166, 22280, 23864, 29830, 42332, 52915, 59660, 84664, 87449, 105830, 119320, 174898, 211660, 349796, 423320, 437245, 699592, 874490, 1661531, 1748980, 3323062, 3497960, 6646124, 8307655, 13292248, 16615310, 33230620, 66461240]

約数ペア:

[(1, 66461240), (2, 33230620), (4, 16615310), (5, 13292248), (8, 8307655), (10, 6646124), (19, 3497960), (20, 3323062), (38, 1748980), (40, 1661531), (76, 874490), (95, 699592), (152, 437245), (157, 423320), (190, 349796), (314, 211660), (380, 174898), (557, 119320), (628, 105830), (760, 87449), (785, 84664), (1114, 59660), (1256, 52915), (1570, 42332), (2228, 29830), (2785, 23864), (2983, 22280), (3140, 21166), (4456, 14915), (5570, 11932), (5966, 11140), (6280, 10583)]