18469880

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{3229}}^1$

素因数の和:3264

約数の個数: 64

約数和(自身を含む): 48837600

約数和(自身を除く): 30367720

約数列:

[1, 2, 4, 5, 8, 10, 11, 13, 20, 22, 26, 40, 44, 52, 55, 65, 88, 104, 110, 130, 143, 220, 260, 286, 440, 520, 572, 715, 1144, 1430, 2860, 3229, 5720, 6458, 12916, 16145, 25832, 32290, 35519, 41977, 64580, 71038, 83954, 129160, 142076, 167908, 177595, 209885, 284152, 335816, 355190, 419770, 461747, 710380, 839540, 923494, 1420760, 1679080, 1846988, 2308735, 3693976, 4617470, 9234940, 18469880]

約数ペア:

[(1, 18469880), (2, 9234940), (4, 4617470), (5, 3693976), (8, 2308735), (10, 1846988), (11, 1679080), (13, 1420760), (20, 923494), (22, 839540), (26, 710380), (40, 461747), (44, 419770), (52, 355190), (55, 335816), (65, 284152), (88, 209885), (104, 177595), (110, 167908), (130, 142076), (143, 129160), (220, 83954), (260, 71038), (286, 64580), (440, 41977), (520, 35519), (572, 32290), (715, 25832), (1144, 16145), (1430, 12916), (2860, 6458), (3229, 5720)]