6541960

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{3989}}^1$

素因数の和:4041

約数の個数: 32

約数和(自身を含む): 15082200

約数和(自身を除く): 8540240

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 82, 164, 205, 328, 410, 820, 1640, 3989, 7978, 15956, 19945, 31912, 39890, 79780, 159560, 163549, 327098, 654196, 817745, 1308392, 1635490, 3270980, 6541960]

約数ペア:

[(1, 6541960), (2, 3270980), (4, 1635490), (5, 1308392), (8, 817745), (10, 654196), (20, 327098), (40, 163549), (41, 159560), (82, 79780), (164, 39890), (205, 31912), (328, 19945), (410, 15956), (820, 7978), (1640, 3989)]