211640

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1$

素因数の和:72

約数の個数: 64

約数和(自身を含む): 574560

約数和(自身を除く): 362920

約数列:

[1, 2, 4, 5, 8, 10, 11, 13, 20, 22, 26, 37, 40, 44, 52, 55, 65, 74, 88, 104, 110, 130, 143, 148, 185, 220, 260, 286, 296, 370, 407, 440, 481, 520, 572, 715, 740, 814, 962, 1144, 1430, 1480, 1628, 1924, 2035, 2405, 2860, 3256, 3848, 4070, 4810, 5291, 5720, 8140, 9620, 10582, 16280, 19240, 21164, 26455, 42328, 52910, 105820, 211640]

約数ペア:

[(1, 211640), (2, 105820), (4, 52910), (5, 42328), (8, 26455), (10, 21164), (11, 19240), (13, 16280), (20, 10582), (22, 9620), (26, 8140), (37, 5720), (40, 5291), (44, 4810), (52, 4070), (55, 3848), (65, 3256), (74, 2860), (88, 2405), (104, 2035), (110, 1924), (130, 1628), (143, 1480), (148, 1430), (185, 1144), (220, 962), (260, 814), (286, 740), (296, 715), (370, 572), (407, 520), (440, 481)]