64955420

素因数分解:

$2^2\times 5^1\times {\mathrm{107}}^1\times {\mathrm{127}}^1\times {\mathrm{239}}^1$

素因数の和:482

約数の個数: 48

約数和(自身を含む): 139345920

約数和(自身を除く): 74390500

約数列:

[1, 2, 4, 5, 10, 20, 107, 127, 214, 239, 254, 428, 478, 508, 535, 635, 956, 1070, 1195, 1270, 2140, 2390, 2540, 4780, 13589, 25573, 27178, 30353, 51146, 54356, 60706, 67945, 102292, 121412, 127865, 135890, 151765, 255730, 271780, 303530, 511460, 607060, 3247771, 6495542, 12991084, 16238855, 32477710, 64955420]

約数ペア:

[(1, 64955420), (2, 32477710), (4, 16238855), (5, 12991084), (10, 6495542), (20, 3247771), (107, 607060), (127, 511460), (214, 303530), (239, 271780), (254, 255730), (428, 151765), (478, 135890), (508, 127865), (535, 121412), (635, 102292), (956, 67945), (1070, 60706), (1195, 54356), (1270, 51146), (2140, 30353), (2390, 27178), (2540, 25573), (4780, 13589)]