64756250

素因数分解:

$2^1\times 5^5\times {\mathrm{13}}^1\times {\mathrm{797}}^1$

素因数の和:837

約数の個数: 48

約数和(自身を含む): 130913496

約数和(自身を除く): 66157246

約数列:

[1, 2, 5, 10, 13, 25, 26, 50, 65, 125, 130, 250, 325, 625, 650, 797, 1250, 1594, 1625, 3125, 3250, 3985, 6250, 7970, 8125, 10361, 16250, 19925, 20722, 39850, 40625, 51805, 81250, 99625, 103610, 199250, 259025, 498125, 518050, 996250, 1295125, 2490625, 2590250, 4981250, 6475625, 12951250, 32378125, 64756250]

約数ペア:

[(1, 64756250), (2, 32378125), (5, 12951250), (10, 6475625), (13, 4981250), (25, 2590250), (26, 2490625), (50, 1295125), (65, 996250), (125, 518050), (130, 498125), (250, 259025), (325, 199250), (625, 103610), (650, 99625), (797, 81250), (1250, 51805), (1594, 40625), (1625, 39850), (3125, 20722), (3250, 19925), (3985, 16250), (6250, 10361), (7970, 8125)]