406250

素因数分解:

$2^1\times 5^6\times {\mathrm{13}}^1$

素因数の和:45

約数の個数: 28

約数和(自身を含む): 820302

約数和(自身を除く): 414052

約数列:

[1, 2, 5, 10, 13, 25, 26, 50, 65, 125, 130, 250, 325, 625, 650, 1250, 1625, 3125, 3250, 6250, 8125, 15625, 16250, 31250, 40625, 81250, 203125, 406250]

約数ペア:

[(1, 406250), (2, 203125), (5, 81250), (10, 40625), (13, 31250), (25, 16250), (26, 15625), (50, 8125), (65, 6250), (125, 3250), (130, 3125), (250, 1625), (325, 1250), (625, 650)]