1641250

素因数分解:

$2^1\times 5^4\times {\mathrm{13}}^1\times {\mathrm{101}}^1$

素因数の和:136

約数の個数: 40

約数和(自身を含む): 3345804

約数和(自身を除く): 1704554

約数列:

[1, 2, 5, 10, 13, 25, 26, 50, 65, 101, 125, 130, 202, 250, 325, 505, 625, 650, 1010, 1250, 1313, 1625, 2525, 2626, 3250, 5050, 6565, 8125, 12625, 13130, 16250, 25250, 32825, 63125, 65650, 126250, 164125, 328250, 820625, 1641250]

約数ペア:

[(1, 1641250), (2, 820625), (5, 328250), (10, 164125), (13, 126250), (25, 65650), (26, 63125), (50, 32825), (65, 25250), (101, 16250), (125, 13130), (130, 12625), (202, 8125), (250, 6565), (325, 5050), (505, 3250), (625, 2626), (650, 2525), (1010, 1625), (1250, 1313)]