257208640

素因数分解:

$2^6\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{3637}}^1$

素因数の和:3684

約数の個数: 112

約数和(自身を含む): 698583312

約数和(自身を除く): 441374672

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 17, 20, 26, 32, 34, 40, 52, 64, 65, 68, 80, 85, 104, 130, 136, 160, 170, 208, 221, 260, 272, 320, 340, 416, 442, 520, 544, 680, 832, 884, 1040, 1088, 1105, 1360, 1768, 2080, 2210, 2720, 3536, 3637, 4160, 4420, 5440, 7072, 7274, 8840, 14144, 14548, 17680, 18185, 29096, 35360, 36370, 47281, 58192, 61829, 70720, 72740, 94562, 116384, 123658, 145480, 189124, 232768, 236405, 247316, 290960, 309145, 378248, 472810, 494632, 581920, 618290, 756496, 803777, 945620, 989264, 1163840, 1236580, 1512992, 1607554, 1891240, 1978528, 2473160, 3025984, 3215108, 3782480, 3957056, 4018885, 4946320, 6430216, 7564960, 8037770, 9892640, 12860432, 15129920, 16075540, 19785280, 25720864, 32151080, 51441728, 64302160, 128604320, 257208640]

約数ペア:

[(1, 257208640), (2, 128604320), (4, 64302160), (5, 51441728), (8, 32151080), (10, 25720864), (13, 19785280), (16, 16075540), (17, 15129920), (20, 12860432), (26, 9892640), (32, 8037770), (34, 7564960), (40, 6430216), (52, 4946320), (64, 4018885), (65, 3957056), (68, 3782480), (80, 3215108), (85, 3025984), (104, 2473160), (130, 1978528), (136, 1891240), (160, 1607554), (170, 1512992), (208, 1236580), (221, 1163840), (260, 989264), (272, 945620), (320, 803777), (340, 756496), (416, 618290), (442, 581920), (520, 494632), (544, 472810), (680, 378248), (832, 309145), (884, 290960), (1040, 247316), (1088, 236405), (1105, 232768), (1360, 189124), (1768, 145480), (2080, 123658), (2210, 116384), (2720, 94562), (3536, 72740), (3637, 70720), (4160, 61829), (4420, 58192), (5440, 47281), (7072, 36370), (7274, 35360), (8840, 29096), (14144, 18185), (14548, 17680)]