71490250

素因数分解:

$2^1\times 5^3\times {\mathrm{13}}^1\times {\mathrm{21997}}^1$

素因数の和:22027

約数の個数: 32

約数和(自身を含む): 144130896

約数和(自身を除く): 72640646

約数列:

[1, 2, 5, 10, 13, 25, 26, 50, 65, 125, 130, 250, 325, 650, 1625, 3250, 21997, 43994, 109985, 219970, 285961, 549925, 571922, 1099850, 1429805, 2749625, 2859610, 5499250, 7149025, 14298050, 35745125, 71490250]

約数ペア:

[(1, 71490250), (2, 35745125), (5, 14298050), (10, 7149025), (13, 5499250), (25, 2859610), (26, 2749625), (50, 1429805), (65, 1099850), (125, 571922), (130, 549925), (250, 285961), (325, 219970), (650, 109985), (1625, 43994), (3250, 21997)]