7217440

素因数分解:

$2^5\times 5^1\times {\mathrm{79}}^1\times {\mathrm{571}}^1$

素因数の和:665

約数の個数: 48

約数和(自身を含む): 17297280

約数和(自身を除く): 10079840

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 79, 80, 158, 160, 316, 395, 571, 632, 790, 1142, 1264, 1580, 2284, 2528, 2855, 3160, 4568, 5710, 6320, 9136, 11420, 12640, 18272, 22840, 45109, 45680, 90218, 91360, 180436, 225545, 360872, 451090, 721744, 902180, 1443488, 1804360, 3608720, 7217440]

約数ペア:

[(1, 7217440), (2, 3608720), (4, 1804360), (5, 1443488), (8, 902180), (10, 721744), (16, 451090), (20, 360872), (32, 225545), (40, 180436), (79, 91360), (80, 90218), (158, 45680), (160, 45109), (316, 22840), (395, 18272), (571, 12640), (632, 11420), (790, 9136), (1142, 6320), (1264, 5710), (1580, 4568), (2284, 3160), (2528, 2855)]