17641520

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{16963}}^1$

素因数の和:16989

約数の個数: 40

約数和(自身を含む): 44174256

約数和(自身を除く): 26532736

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 260, 520, 1040, 16963, 33926, 67852, 84815, 135704, 169630, 220519, 271408, 339260, 441038, 678520, 882076, 1102595, 1357040, 1764152, 2205190, 3528304, 4410380, 8820760, 17641520]

約数ペア:

[(1, 17641520), (2, 8820760), (4, 4410380), (5, 3528304), (8, 2205190), (10, 1764152), (13, 1357040), (16, 1102595), (20, 882076), (26, 678520), (40, 441038), (52, 339260), (65, 271408), (80, 220519), (104, 169630), (130, 135704), (208, 84815), (260, 67852), (520, 33926), (1040, 16963)]