80689960

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{8167}}^1$

素因数の和:8210

約数の個数: 64

約数和(自身を含む): 205833600

約数和(自身を除く): 125143640

約数列:

[1, 2, 4, 5, 8, 10, 13, 19, 20, 26, 38, 40, 52, 65, 76, 95, 104, 130, 152, 190, 247, 260, 380, 494, 520, 760, 988, 1235, 1976, 2470, 4940, 8167, 9880, 16334, 32668, 40835, 65336, 81670, 106171, 155173, 163340, 212342, 310346, 326680, 424684, 530855, 620692, 775865, 849368, 1061710, 1241384, 1551730, 2017249, 2123420, 3103460, 4034498, 4246840, 6206920, 8068996, 10086245, 16137992, 20172490, 40344980, 80689960]

約数ペア:

[(1, 80689960), (2, 40344980), (4, 20172490), (5, 16137992), (8, 10086245), (10, 8068996), (13, 6206920), (19, 4246840), (20, 4034498), (26, 3103460), (38, 2123420), (40, 2017249), (52, 1551730), (65, 1241384), (76, 1061710), (95, 849368), (104, 775865), (130, 620692), (152, 530855), (190, 424684), (247, 326680), (260, 310346), (380, 212342), (494, 163340), (520, 155173), (760, 106171), (988, 81670), (1235, 65336), (1976, 40835), (2470, 32668), (4940, 16334), (8167, 9880)]