400735816

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{173}}^1\times {\mathrm{22273}}^1$

素因数の和:22465

約数の個数: 32

約数和(自身を含む): 813891960

約数和(自身を除く): 413156144

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 173, 346, 692, 1384, 2249, 4498, 8996, 17992, 22273, 44546, 89092, 178184, 289549, 579098, 1158196, 2316392, 3853229, 7706458, 15412916, 30825832, 50091977, 100183954, 200367908, 400735816]

約数ペア:

[(1, 400735816), (2, 200367908), (4, 100183954), (8, 50091977), (13, 30825832), (26, 15412916), (52, 7706458), (104, 3853229), (173, 2316392), (346, 1158196), (692, 579098), (1384, 289549), (2249, 178184), (4498, 89092), (8996, 44546), (17992, 22273)]