20798907876

素因数分解:

$2^2\times 3^2\times {\mathrm{41}}^1\times {\mathrm{43}}^1\times {\mathrm{327707}}^1$

素因数の和:327801

約数の個数: 72

約数和(自身を含む): 55109998944

約数和(自身を除く): 34311091068

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 41, 43, 82, 86, 123, 129, 164, 172, 246, 258, 369, 387, 492, 516, 738, 774, 1476, 1548, 1763, 3526, 5289, 7052, 10578, 15867, 21156, 31734, 63468, 327707, 655414, 983121, 1310828, 1966242, 2949363, 3932484, 5898726, 11797452, 13435987, 14091401, 26871974, 28182802, 40307961, 42274203, 53743948, 56365604, 80615922, 84548406, 120923883, 126822609, 161231844, 169096812, 241847766, 253645218, 483695532, 507290436, 577747441, 1155494882, 1733242323, 2310989764, 3466484646, 5199726969, 6932969292, 10399453938, 20798907876]

約数ペア:

[(1, 20798907876), (2, 10399453938), (3, 6932969292), (4, 5199726969), (6, 3466484646), (9, 2310989764), (12, 1733242323), (18, 1155494882), (36, 577747441), (41, 507290436), (43, 483695532), (82, 253645218), (86, 241847766), (123, 169096812), (129, 161231844), (164, 126822609), (172, 120923883), (246, 84548406), (258, 80615922), (369, 56365604), (387, 53743948), (492, 42274203), (516, 40307961), (738, 28182802), (774, 26871974), (1476, 14091401), (1548, 13435987), (1763, 11797452), (3526, 5898726), (5289, 3932484), (7052, 2949363), (10578, 1966242), (15867, 1310828), (21156, 983121), (31734, 655414), (63468, 327707)]