31373520

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{61}}^1\times {\mathrm{2143}}^1$

素因数の和:2220

約数の個数: 80

約数和(自身を含む): 98898432

約数和(自身を除く): 67524912

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 61, 80, 120, 122, 183, 240, 244, 305, 366, 488, 610, 732, 915, 976, 1220, 1464, 1830, 2143, 2440, 2928, 3660, 4286, 4880, 6429, 7320, 8572, 10715, 12858, 14640, 17144, 21430, 25716, 32145, 34288, 42860, 51432, 64290, 85720, 102864, 128580, 130723, 171440, 257160, 261446, 392169, 514320, 522892, 653615, 784338, 1045784, 1307230, 1568676, 1960845, 2091568, 2614460, 3137352, 3921690, 5228920, 6274704, 7843380, 10457840, 15686760, 31373520]

約数ペア:

[(1, 31373520), (2, 15686760), (3, 10457840), (4, 7843380), (5, 6274704), (6, 5228920), (8, 3921690), (10, 3137352), (12, 2614460), (15, 2091568), (16, 1960845), (20, 1568676), (24, 1307230), (30, 1045784), (40, 784338), (48, 653615), (60, 522892), (61, 514320), (80, 392169), (120, 261446), (122, 257160), (183, 171440), (240, 130723), (244, 128580), (305, 102864), (366, 85720), (488, 64290), (610, 51432), (732, 42860), (915, 34288), (976, 32145), (1220, 25716), (1464, 21430), (1830, 17144), (2143, 14640), (2440, 12858), (2928, 10715), (3660, 8572), (4286, 7320), (4880, 6429)]