1643720

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{109}}^1$

素因数の和:162

約数の個数: 64

約数和(自身を含む): 4158000

約数和(自身を除く): 2514280

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 29, 40, 52, 58, 65, 104, 109, 116, 130, 145, 218, 232, 260, 290, 377, 436, 520, 545, 580, 754, 872, 1090, 1160, 1417, 1508, 1885, 2180, 2834, 3016, 3161, 3770, 4360, 5668, 6322, 7085, 7540, 11336, 12644, 14170, 15080, 15805, 25288, 28340, 31610, 41093, 56680, 63220, 82186, 126440, 164372, 205465, 328744, 410930, 821860, 1643720]

約数ペア:

[(1, 1643720), (2, 821860), (4, 410930), (5, 328744), (8, 205465), (10, 164372), (13, 126440), (20, 82186), (26, 63220), (29, 56680), (40, 41093), (52, 31610), (58, 28340), (65, 25288), (104, 15805), (109, 15080), (116, 14170), (130, 12644), (145, 11336), (218, 7540), (232, 7085), (260, 6322), (290, 5668), (377, 4360), (436, 3770), (520, 3161), (545, 3016), (580, 2834), (754, 2180), (872, 1885), (1090, 1508), (1160, 1417)]