21793760

素因数分解:

$2^5\times 5^1\times {\mathrm{19}}^1\times {\mathrm{67}}^1\times {\mathrm{107}}^1$

素因数の和:208

約数の個数: 96

約数和(自身を含む): 55520640

約数和(自身を除く): 33726880

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 32, 38, 40, 67, 76, 80, 95, 107, 134, 152, 160, 190, 214, 268, 304, 335, 380, 428, 535, 536, 608, 670, 760, 856, 1070, 1072, 1273, 1340, 1520, 1712, 2033, 2140, 2144, 2546, 2680, 3040, 3424, 4066, 4280, 5092, 5360, 6365, 7169, 8132, 8560, 10165, 10184, 10720, 12730, 14338, 16264, 17120, 20330, 20368, 25460, 28676, 32528, 35845, 40660, 40736, 50920, 57352, 65056, 71690, 81320, 101840, 114704, 136211, 143380, 162640, 203680, 229408, 272422, 286760, 325280, 544844, 573520, 681055, 1089688, 1147040, 1362110, 2179376, 2724220, 4358752, 5448440, 10896880, 21793760]

約数ペア:

[(1, 21793760), (2, 10896880), (4, 5448440), (5, 4358752), (8, 2724220), (10, 2179376), (16, 1362110), (19, 1147040), (20, 1089688), (32, 681055), (38, 573520), (40, 544844), (67, 325280), (76, 286760), (80, 272422), (95, 229408), (107, 203680), (134, 162640), (152, 143380), (160, 136211), (190, 114704), (214, 101840), (268, 81320), (304, 71690), (335, 65056), (380, 57352), (428, 50920), (535, 40736), (536, 40660), (608, 35845), (670, 32528), (760, 28676), (856, 25460), (1070, 20368), (1072, 20330), (1273, 17120), (1340, 16264), (1520, 14338), (1712, 12730), (2033, 10720), (2140, 10184), (2144, 10165), (2546, 8560), (2680, 8132), (3040, 7169), (3424, 6365), (4066, 5360), (4280, 5092)]