1215721808

素因数分解:

$2^4\times 7^1\times {\mathrm{163}}^1\times {\mathrm{66593}}^1$

素因数の和:66771

約数の個数: 40

約数和(自身を含む): 2708511168

約数和(自身を除く): 1492789360

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 163, 326, 652, 1141, 1304, 2282, 2608, 4564, 9128, 18256, 66593, 133186, 266372, 466151, 532744, 932302, 1065488, 1864604, 3729208, 7458416, 10854659, 21709318, 43418636, 75982613, 86837272, 151965226, 173674544, 303930452, 607860904, 1215721808]

約数ペア:

[(1, 1215721808), (2, 607860904), (4, 303930452), (7, 173674544), (8, 151965226), (14, 86837272), (16, 75982613), (28, 43418636), (56, 21709318), (112, 10854659), (163, 7458416), (326, 3729208), (652, 1864604), (1141, 1065488), (1304, 932302), (2282, 532744), (2608, 466151), (4564, 266372), (9128, 133186), (18256, 66593)]