29999860

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{7177}}^1$

素因数の和:7216

約数の個数: 48

約数和(自身を含む): 72354240

約数和(自身を除く): 42354380

約数列:

[1, 2, 4, 5, 10, 11, 19, 20, 22, 38, 44, 55, 76, 95, 110, 190, 209, 220, 380, 418, 836, 1045, 2090, 4180, 7177, 14354, 28708, 35885, 71770, 78947, 136363, 143540, 157894, 272726, 315788, 394735, 545452, 681815, 789470, 1363630, 1499993, 1578940, 2727260, 2999986, 5999972, 7499965, 14999930, 29999860]

約数ペア:

[(1, 29999860), (2, 14999930), (4, 7499965), (5, 5999972), (10, 2999986), (11, 2727260), (19, 1578940), (20, 1499993), (22, 1363630), (38, 789470), (44, 681815), (55, 545452), (76, 394735), (95, 315788), (110, 272726), (190, 157894), (209, 143540), (220, 136363), (380, 78947), (418, 71770), (836, 35885), (1045, 28708), (2090, 14354), (4180, 7177)]