207901100

素因数分解:

$2^2\times 5^2\times {\mathrm{11}}^1\times {\mathrm{331}}^1\times {\mathrm{571}}^1$

素因数の和:927

約数の個数: 72

約数和(自身を含む): 494510016

約数和(自身を除く): 286608916

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 25, 44, 50, 55, 100, 110, 220, 275, 331, 550, 571, 662, 1100, 1142, 1324, 1655, 2284, 2855, 3310, 3641, 5710, 6281, 6620, 7282, 8275, 11420, 12562, 14275, 14564, 16550, 18205, 25124, 28550, 31405, 33100, 36410, 57100, 62810, 72820, 91025, 125620, 157025, 182050, 189001, 314050, 364100, 378002, 628100, 756004, 945005, 1890010, 2079011, 3780020, 4158022, 4725025, 8316044, 9450050, 10395055, 18900100, 20790110, 41580220, 51975275, 103950550, 207901100]

約数ペア:

[(1, 207901100), (2, 103950550), (4, 51975275), (5, 41580220), (10, 20790110), (11, 18900100), (20, 10395055), (22, 9450050), (25, 8316044), (44, 4725025), (50, 4158022), (55, 3780020), (100, 2079011), (110, 1890010), (220, 945005), (275, 756004), (331, 628100), (550, 378002), (571, 364100), (662, 314050), (1100, 189001), (1142, 182050), (1324, 157025), (1655, 125620), (2284, 91025), (2855, 72820), (3310, 62810), (3641, 57100), (5710, 36410), (6281, 33100), (6620, 31405), (7282, 28550), (8275, 25124), (11420, 18205), (12562, 16550), (14275, 14564)]