20125927705

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{53}}^1\times {\mathrm{254003}}^1$

素因数の和:254097

約数の個数: 32

約数和(自身を含む): 27651891456

約数和(自身を除く): 7525963751

約数列:

[1, 5, 13, 23, 53, 65, 115, 265, 299, 689, 1219, 1495, 3445, 6095, 15847, 79235, 254003, 1270015, 3302039, 5842069, 13462159, 16510195, 29210345, 67310795, 75946897, 175008067, 309629657, 379734485, 875040335, 1548148285, 4025185541, 20125927705]

約数ペア:

[(1, 20125927705), (5, 4025185541), (13, 1548148285), (23, 875040335), (53, 379734485), (65, 309629657), (115, 175008067), (265, 75946897), (299, 67310795), (689, 29210345), (1219, 16510195), (1495, 13462159), (3445, 5842069), (6095, 3302039), (15847, 1270015), (79235, 254003)]