66647120

素因数分解:

$2^4\times 5^1\times {\mathrm{571}}^1\times {\mathrm{1459}}^1$

素因数の和:2043

約数の個数: 40

約数和(自身を含む): 155332320

約数和(自身を除く): 88685200

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 571, 1142, 1459, 2284, 2855, 2918, 4568, 5710, 5836, 7295, 9136, 11420, 11672, 14590, 22840, 23344, 29180, 45680, 58360, 116720, 833089, 1666178, 3332356, 4165445, 6664712, 8330890, 13329424, 16661780, 33323560, 66647120]

約数ペア:

[(1, 66647120), (2, 33323560), (4, 16661780), (5, 13329424), (8, 8330890), (10, 6664712), (16, 4165445), (20, 3332356), (40, 1666178), (80, 833089), (571, 116720), (1142, 58360), (1459, 45680), (2284, 29180), (2855, 23344), (2918, 22840), (4568, 14590), (5710, 11672), (5836, 11420), (7295, 9136)]