80643640

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{26183}}^1$

素因数の和:26212

約数の個数: 64

約数和(自身を含む): 226229760

約数和(自身を除く): 145586120

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 14, 20, 22, 28, 35, 40, 44, 55, 56, 70, 77, 88, 110, 140, 154, 220, 280, 308, 385, 440, 616, 770, 1540, 3080, 26183, 52366, 104732, 130915, 183281, 209464, 261830, 288013, 366562, 523660, 576026, 733124, 916405, 1047320, 1152052, 1440065, 1466248, 1832810, 2016091, 2304104, 2880130, 3665620, 4032182, 5760260, 7331240, 8064364, 10080455, 11520520, 16128728, 20160910, 40321820, 80643640]

約数ペア:

[(1, 80643640), (2, 40321820), (4, 20160910), (5, 16128728), (7, 11520520), (8, 10080455), (10, 8064364), (11, 7331240), (14, 5760260), (20, 4032182), (22, 3665620), (28, 2880130), (35, 2304104), (40, 2016091), (44, 1832810), (55, 1466248), (56, 1440065), (70, 1152052), (77, 1047320), (88, 916405), (110, 733124), (140, 576026), (154, 523660), (220, 366562), (280, 288013), (308, 261830), (385, 209464), (440, 183281), (616, 130915), (770, 104732), (1540, 52366), (3080, 26183)]