18296740

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{109}}^2$

素因数の和:245

約数の個数: 72

約数和(自身を含む): 48347712

約数和(自身を除く): 30050972

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 28, 35, 44, 55, 70, 77, 109, 110, 140, 154, 218, 220, 308, 385, 436, 545, 763, 770, 1090, 1199, 1526, 1540, 2180, 2398, 3052, 3815, 4796, 5995, 7630, 8393, 11881, 11990, 15260, 16786, 23762, 23980, 33572, 41965, 47524, 59405, 83167, 83930, 118810, 130691, 166334, 167860, 237620, 261382, 332668, 415835, 522764, 653455, 831670, 914837, 1306910, 1663340, 1829674, 2613820, 3659348, 4574185, 9148370, 18296740]

約数ペア:

[(1, 18296740), (2, 9148370), (4, 4574185), (5, 3659348), (7, 2613820), (10, 1829674), (11, 1663340), (14, 1306910), (20, 914837), (22, 831670), (28, 653455), (35, 522764), (44, 415835), (55, 332668), (70, 261382), (77, 237620), (109, 167860), (110, 166334), (140, 130691), (154, 118810), (218, 83930), (220, 83167), (308, 59405), (385, 47524), (436, 41965), (545, 33572), (763, 23980), (770, 23762), (1090, 16786), (1199, 15260), (1526, 11990), (1540, 11881), (2180, 8393), (2398, 7630), (3052, 5995), (3815, 4796)]