13221440

素因数分解:

$2^6\times 5^1\times {\mathrm{79}}^1\times {\mathrm{523}}^1$

素因数の和:619

約数の個数: 56

約数和(自身を含む): 31943040

約数和(自身を除く): 18721600

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 79, 80, 158, 160, 316, 320, 395, 523, 632, 790, 1046, 1264, 1580, 2092, 2528, 2615, 3160, 4184, 5056, 5230, 6320, 8368, 10460, 12640, 16736, 20920, 25280, 33472, 41317, 41840, 82634, 83680, 165268, 167360, 206585, 330536, 413170, 661072, 826340, 1322144, 1652680, 2644288, 3305360, 6610720, 13221440]

約数ペア:

[(1, 13221440), (2, 6610720), (4, 3305360), (5, 2644288), (8, 1652680), (10, 1322144), (16, 826340), (20, 661072), (32, 413170), (40, 330536), (64, 206585), (79, 167360), (80, 165268), (158, 83680), (160, 82634), (316, 41840), (320, 41317), (395, 33472), (523, 25280), (632, 20920), (790, 16736), (1046, 12640), (1264, 10460), (1580, 8368), (2092, 6320), (2528, 5230), (2615, 5056), (3160, 4184)]