20807879660

素因数分解:

$2^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{41}}^1\times {\mathrm{1103281}}^1$

素因数の和:1103354

約数の個数: 48

約数和(自身を含む): 46708546752

約数和(自身を除く): 25900667092

約数列:

[1, 2, 4, 5, 10, 20, 23, 41, 46, 82, 92, 115, 164, 205, 230, 410, 460, 820, 943, 1886, 3772, 4715, 9430, 18860, 1103281, 2206562, 4413124, 5516405, 11032810, 22065620, 25375463, 45234521, 50750926, 90469042, 101501852, 126877315, 180938084, 226172605, 253754630, 452345210, 507509260, 904690420, 1040393983, 2080787966, 4161575932, 5201969915, 10403939830, 20807879660]

約数ペア:

[(1, 20807879660), (2, 10403939830), (4, 5201969915), (5, 4161575932), (10, 2080787966), (20, 1040393983), (23, 904690420), (41, 507509260), (46, 452345210), (82, 253754630), (92, 226172605), (115, 180938084), (164, 126877315), (205, 101501852), (230, 90469042), (410, 50750926), (460, 45234521), (820, 25375463), (943, 22065620), (1886, 11032810), (3772, 5516405), (4715, 4413124), (9430, 2206562), (18860, 1103281)]