18884060

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^2\times {\mathrm{37}}^1\times {\mathrm{151}}^1$

素因数の和:223

約数の個数: 72

約数和(自身を含む): 44394336

約数和(自身を除く): 25510276

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 37, 52, 65, 74, 130, 148, 151, 169, 185, 260, 302, 338, 370, 481, 604, 676, 740, 755, 845, 962, 1510, 1690, 1924, 1963, 2405, 3020, 3380, 3926, 4810, 5587, 6253, 7852, 9620, 9815, 11174, 12506, 19630, 22348, 25012, 25519, 27935, 31265, 39260, 51038, 55870, 62530, 72631, 102076, 111740, 125060, 127595, 145262, 255190, 290524, 363155, 510380, 726310, 944203, 1452620, 1888406, 3776812, 4721015, 9442030, 18884060]

約数ペア:

[(1, 18884060), (2, 9442030), (4, 4721015), (5, 3776812), (10, 1888406), (13, 1452620), (20, 944203), (26, 726310), (37, 510380), (52, 363155), (65, 290524), (74, 255190), (130, 145262), (148, 127595), (151, 125060), (169, 111740), (185, 102076), (260, 72631), (302, 62530), (338, 55870), (370, 51038), (481, 39260), (604, 31265), (676, 27935), (740, 25519), (755, 25012), (845, 22348), (962, 19630), (1510, 12506), (1690, 11174), (1924, 9815), (1963, 9620), (2405, 7852), (3020, 6253), (3380, 5587), (3926, 4810)]