8581040

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{223}}^1$

素因数の和:286

約数の個数: 80

約数和(自身を含む): 22165248

約数和(自身を除く): 13584208

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 37, 40, 52, 65, 74, 80, 104, 130, 148, 185, 208, 223, 260, 296, 370, 446, 481, 520, 592, 740, 892, 962, 1040, 1115, 1480, 1784, 1924, 2230, 2405, 2899, 2960, 3568, 3848, 4460, 4810, 5798, 7696, 8251, 8920, 9620, 11596, 14495, 16502, 17840, 19240, 23192, 28990, 33004, 38480, 41255, 46384, 57980, 66008, 82510, 107263, 115960, 132016, 165020, 214526, 231920, 330040, 429052, 536315, 660080, 858104, 1072630, 1716208, 2145260, 4290520, 8581040]

約数ペア:

[(1, 8581040), (2, 4290520), (4, 2145260), (5, 1716208), (8, 1072630), (10, 858104), (13, 660080), (16, 536315), (20, 429052), (26, 330040), (37, 231920), (40, 214526), (52, 165020), (65, 132016), (74, 115960), (80, 107263), (104, 82510), (130, 66008), (148, 57980), (185, 46384), (208, 41255), (223, 38480), (260, 33004), (296, 28990), (370, 23192), (446, 19240), (481, 17840), (520, 16502), (592, 14495), (740, 11596), (892, 9620), (962, 8920), (1040, 8251), (1115, 7696), (1480, 5798), (1784, 4810), (1924, 4460), (2230, 3848), (2405, 3568), (2899, 2960)]