259626250

素因数分解:

$2^1\times 5^4\times {\mathrm{13}}^2\times {\mathrm{1229}}^1$

素因数の和:1277

約数の個数: 60

約数和(自身を含む): 527385870

約数和(自身を除く): 267759620

約数列:

[1, 2, 5, 10, 13, 25, 26, 50, 65, 125, 130, 169, 250, 325, 338, 625, 650, 845, 1229, 1250, 1625, 1690, 2458, 3250, 4225, 6145, 8125, 8450, 12290, 15977, 16250, 21125, 30725, 31954, 42250, 61450, 79885, 105625, 153625, 159770, 207701, 211250, 307250, 399425, 415402, 768125, 798850, 1038505, 1536250, 1997125, 2077010, 3994250, 5192525, 9985625, 10385050, 19971250, 25962625, 51925250, 129813125, 259626250]

約数ペア:

[(1, 259626250), (2, 129813125), (5, 51925250), (10, 25962625), (13, 19971250), (25, 10385050), (26, 9985625), (50, 5192525), (65, 3994250), (125, 2077010), (130, 1997125), (169, 1536250), (250, 1038505), (325, 798850), (338, 768125), (625, 415402), (650, 399425), (845, 307250), (1229, 211250), (1250, 207701), (1625, 159770), (1690, 153625), (2458, 105625), (3250, 79885), (4225, 61450), (6145, 42250), (8125, 31954), (8450, 30725), (12290, 21125), (15977, 16250)]