20855405090

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{5197}}^1\times {\mathrm{30869}}^1$

素因数の和:36086

約数の個数: 32

約数和(自身を含む): 40436489520

約数和(自身を除く): 19581084430

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 5197, 10394, 25985, 30869, 51970, 61738, 67561, 135122, 154345, 308690, 337805, 401297, 675610, 802594, 2006485, 4012970, 160426193, 320852386, 802130965, 1604261930, 2085540509, 4171081018, 10427702545, 20855405090]

約数ペア:

[(1, 20855405090), (2, 10427702545), (5, 4171081018), (10, 2085540509), (13, 1604261930), (26, 802130965), (65, 320852386), (130, 160426193), (5197, 4012970), (10394, 2006485), (25985, 802594), (30869, 675610), (51970, 401297), (61738, 337805), (67561, 308690), (135122, 154345)]