18508880

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^2\times {\mathrm{37}}^2$

素因数の和:113

約数の個数: 90

約数和(自身を含む): 47891466

約数和(自身を除く): 29382586

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 37, 40, 52, 65, 74, 80, 104, 130, 148, 169, 185, 208, 260, 296, 338, 370, 481, 520, 592, 676, 740, 845, 962, 1040, 1352, 1369, 1480, 1690, 1924, 2405, 2704, 2738, 2960, 3380, 3848, 4810, 5476, 6253, 6760, 6845, 7696, 9620, 10952, 12506, 13520, 13690, 17797, 19240, 21904, 25012, 27380, 31265, 35594, 38480, 50024, 54760, 62530, 71188, 88985, 100048, 109520, 125060, 142376, 177970, 231361, 250120, 284752, 355940, 462722, 500240, 711880, 925444, 1156805, 1423760, 1850888, 2313610, 3701776, 4627220, 9254440, 18508880]

約数ペア:

[(1, 18508880), (2, 9254440), (4, 4627220), (5, 3701776), (8, 2313610), (10, 1850888), (13, 1423760), (16, 1156805), (20, 925444), (26, 711880), (37, 500240), (40, 462722), (52, 355940), (65, 284752), (74, 250120), (80, 231361), (104, 177970), (130, 142376), (148, 125060), (169, 109520), (185, 100048), (208, 88985), (260, 71188), (296, 62530), (338, 54760), (370, 50024), (481, 38480), (520, 35594), (592, 31265), (676, 27380), (740, 25012), (845, 21904), (962, 19240), (1040, 17797), (1352, 13690), (1369, 13520), (1480, 12506), (1690, 10952), (1924, 9620), (2405, 7696), (2704, 6845), (2738, 6760), (2960, 6253), (3380, 5476), (3848, 4810)]