77827960

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{239}}^1\times {\mathrm{1163}}^1$

素因数の和:1420

約数の個数: 64

約数和(自身を含む): 201139200

約数和(自身を除く): 123311240

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 239, 280, 478, 956, 1163, 1195, 1673, 1912, 2326, 2390, 3346, 4652, 4780, 5815, 6692, 8141, 8365, 9304, 9560, 11630, 13384, 16282, 16730, 23260, 32564, 33460, 40705, 46520, 65128, 66920, 81410, 162820, 277957, 325640, 555914, 1111828, 1389785, 1945699, 2223656, 2779570, 3891398, 5559140, 7782796, 9728495, 11118280, 15565592, 19456990, 38913980, 77827960]

約数ペア:

[(1, 77827960), (2, 38913980), (4, 19456990), (5, 15565592), (7, 11118280), (8, 9728495), (10, 7782796), (14, 5559140), (20, 3891398), (28, 2779570), (35, 2223656), (40, 1945699), (56, 1389785), (70, 1111828), (140, 555914), (239, 325640), (280, 277957), (478, 162820), (956, 81410), (1163, 66920), (1195, 65128), (1673, 46520), (1912, 40705), (2326, 33460), (2390, 32564), (3346, 23260), (4652, 16730), (4780, 16282), (5815, 13384), (6692, 11630), (8141, 9560), (8365, 9304)]