18789984

素因数分解:

$2^5\times 3^2\times {\mathrm{53}}^1\times {\mathrm{1231}}^1$

素因数の和:1300

約数の個数: 72

約数和(自身を含む): 54486432

約数和(自身を除く): 35696448

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 32, 36, 48, 53, 72, 96, 106, 144, 159, 212, 288, 318, 424, 477, 636, 848, 954, 1231, 1272, 1696, 1908, 2462, 2544, 3693, 3816, 4924, 5088, 7386, 7632, 9848, 11079, 14772, 15264, 19696, 22158, 29544, 39392, 44316, 59088, 65243, 88632, 118176, 130486, 177264, 195729, 260972, 354528, 391458, 521944, 587187, 782916, 1043888, 1174374, 1565832, 2087776, 2348748, 3131664, 4697496, 6263328, 9394992, 18789984]

約数ペア:

[(1, 18789984), (2, 9394992), (3, 6263328), (4, 4697496), (6, 3131664), (8, 2348748), (9, 2087776), (12, 1565832), (16, 1174374), (18, 1043888), (24, 782916), (32, 587187), (36, 521944), (48, 391458), (53, 354528), (72, 260972), (96, 195729), (106, 177264), (144, 130486), (159, 118176), (212, 88632), (288, 65243), (318, 59088), (424, 44316), (477, 39392), (636, 29544), (848, 22158), (954, 19696), (1231, 15264), (1272, 14772), (1696, 11079), (1908, 9848), (2462, 7632), (2544, 7386), (3693, 5088), (3816, 4924)]