645252400

素因数分解:

$2^4\times 5^2\times {\mathrm{13}}^1\times {\mathrm{124087}}^1$

素因数の和:124118

約数の個数: 60

約数和(自身を含む): 1669479952

約数和(自身を除く): 1024227552

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 25, 26, 40, 50, 52, 65, 80, 100, 104, 130, 200, 208, 260, 325, 400, 520, 650, 1040, 1300, 2600, 5200, 124087, 248174, 496348, 620435, 992696, 1240870, 1613131, 1985392, 2481740, 3102175, 3226262, 4963480, 6204350, 6452524, 8065655, 9926960, 12408700, 12905048, 16131310, 24817400, 25810096, 32262620, 40328275, 49634800, 64525240, 80656550, 129050480, 161313100, 322626200, 645252400]

約数ペア:

[(1, 645252400), (2, 322626200), (4, 161313100), (5, 129050480), (8, 80656550), (10, 64525240), (13, 49634800), (16, 40328275), (20, 32262620), (25, 25810096), (26, 24817400), (40, 16131310), (50, 12905048), (52, 12408700), (65, 9926960), (80, 8065655), (100, 6452524), (104, 6204350), (130, 4963480), (200, 3226262), (208, 3102175), (260, 2481740), (325, 1985392), (400, 1613131), (520, 1240870), (650, 992696), (1040, 620435), (1300, 496348), (2600, 248174), (5200, 124087)]