28655120

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{59}}^1\times {\mathrm{467}}^1$

素因数の和:552

約数の個数: 80

約数和(自身を含む): 73120320

約数和(自身を除く): 44465200

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 59, 65, 80, 104, 118, 130, 208, 236, 260, 295, 467, 472, 520, 590, 767, 934, 944, 1040, 1180, 1534, 1868, 2335, 2360, 3068, 3736, 3835, 4670, 4720, 6071, 6136, 7472, 7670, 9340, 12142, 12272, 15340, 18680, 24284, 27553, 30355, 30680, 37360, 48568, 55106, 60710, 61360, 97136, 110212, 121420, 137765, 220424, 242840, 275530, 358189, 440848, 485680, 551060, 716378, 1102120, 1432756, 1790945, 2204240, 2865512, 3581890, 5731024, 7163780, 14327560, 28655120]

約数ペア:

[(1, 28655120), (2, 14327560), (4, 7163780), (5, 5731024), (8, 3581890), (10, 2865512), (13, 2204240), (16, 1790945), (20, 1432756), (26, 1102120), (40, 716378), (52, 551060), (59, 485680), (65, 440848), (80, 358189), (104, 275530), (118, 242840), (130, 220424), (208, 137765), (236, 121420), (260, 110212), (295, 97136), (467, 61360), (472, 60710), (520, 55106), (590, 48568), (767, 37360), (934, 30680), (944, 30355), (1040, 27553), (1180, 24284), (1534, 18680), (1868, 15340), (2335, 12272), (2360, 12142), (3068, 9340), (3736, 7670), (3835, 7472), (4670, 6136), (4720, 6071)]