129455720

素因数分解:

$2^3\times 5^1\times {\mathrm{71}}^1\times {\mathrm{79}}^1\times {\mathrm{577}}^1$

素因数の和:738

約数の個数: 64

約数和(自身を含む): 299635200

約数和(自身を除く): 170179480

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 71, 79, 142, 158, 284, 316, 355, 395, 568, 577, 632, 710, 790, 1154, 1420, 1580, 2308, 2840, 2885, 3160, 4616, 5609, 5770, 11218, 11540, 22436, 23080, 28045, 40967, 44872, 45583, 56090, 81934, 91166, 112180, 163868, 182332, 204835, 224360, 227915, 327736, 364664, 409670, 455830, 819340, 911660, 1638680, 1823320, 3236393, 6472786, 12945572, 16181965, 25891144, 32363930, 64727860, 129455720]

約数ペア:

[(1, 129455720), (2, 64727860), (4, 32363930), (5, 25891144), (8, 16181965), (10, 12945572), (20, 6472786), (40, 3236393), (71, 1823320), (79, 1638680), (142, 911660), (158, 819340), (284, 455830), (316, 409670), (355, 364664), (395, 327736), (568, 227915), (577, 224360), (632, 204835), (710, 182332), (790, 163868), (1154, 112180), (1420, 91166), (1580, 81934), (2308, 56090), (2840, 45583), (2885, 44872), (3160, 40967), (4616, 28045), (5609, 23080), (5770, 22436), (11218, 11540)]