81451020

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{89}}^1\times {\mathrm{2179}}^1$

素因数の和:2287

約数の個数: 96

約数和(自身を含む): 263692800

約数和(自身を除く): 182241780

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 89, 105, 140, 178, 210, 267, 356, 420, 445, 534, 623, 890, 1068, 1246, 1335, 1780, 1869, 2179, 2492, 2670, 3115, 3738, 4358, 5340, 6230, 6537, 7476, 8716, 9345, 10895, 12460, 13074, 15253, 18690, 21790, 26148, 30506, 32685, 37380, 43580, 45759, 61012, 65370, 76265, 91518, 130740, 152530, 183036, 193931, 228795, 305060, 387862, 457590, 581793, 775724, 915180, 969655, 1163586, 1357517, 1939310, 2327172, 2715034, 2908965, 3878620, 4072551, 5430068, 5817930, 6787585, 8145102, 11635860, 13575170, 16290204, 20362755, 27150340, 40725510, 81451020]

約数ペア:

[(1, 81451020), (2, 40725510), (3, 27150340), (4, 20362755), (5, 16290204), (6, 13575170), (7, 11635860), (10, 8145102), (12, 6787585), (14, 5817930), (15, 5430068), (20, 4072551), (21, 3878620), (28, 2908965), (30, 2715034), (35, 2327172), (42, 1939310), (60, 1357517), (70, 1163586), (84, 969655), (89, 915180), (105, 775724), (140, 581793), (178, 457590), (210, 387862), (267, 305060), (356, 228795), (420, 193931), (445, 183036), (534, 152530), (623, 130740), (890, 91518), (1068, 76265), (1246, 65370), (1335, 61012), (1780, 45759), (1869, 43580), (2179, 37380), (2492, 32685), (2670, 30506), (3115, 26148), (3738, 21790), (4358, 18690), (5340, 15253), (6230, 13074), (6537, 12460), (7476, 10895), (8716, 9345)]