81220100

素因数分解:

$2^2\times 5^2\times {\mathrm{13}}^1\times {\mathrm{62477}}^1$

素因数の和:62504

約数の個数: 36

約数和(自身を含む): 189808164

約数和(自身を除く): 108588064

約数列:

[1, 2, 4, 5, 10, 13, 20, 25, 26, 50, 52, 65, 100, 130, 260, 325, 650, 1300, 62477, 124954, 249908, 312385, 624770, 812201, 1249540, 1561925, 1624402, 3123850, 3248804, 4061005, 6247700, 8122010, 16244020, 20305025, 40610050, 81220100]

約数ペア:

[(1, 81220100), (2, 40610050), (4, 20305025), (5, 16244020), (10, 8122010), (13, 6247700), (20, 4061005), (25, 3248804), (26, 3123850), (50, 1624402), (52, 1561925), (65, 1249540), (100, 812201), (130, 624770), (260, 312385), (325, 249908), (650, 124954), (1300, 62477)]