1557880

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{79}}^1$

素因数の和:136

約数の個数: 64

約数和(自身を含む): 3888000

約数和(自身を除く): 2330120

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 29, 34, 40, 58, 68, 79, 85, 116, 136, 145, 158, 170, 232, 290, 316, 340, 395, 493, 580, 632, 680, 790, 986, 1160, 1343, 1580, 1972, 2291, 2465, 2686, 3160, 3944, 4582, 4930, 5372, 6715, 9164, 9860, 10744, 11455, 13430, 18328, 19720, 22910, 26860, 38947, 45820, 53720, 77894, 91640, 155788, 194735, 311576, 389470, 778940, 1557880]

約数ペア:

[(1, 1557880), (2, 778940), (4, 389470), (5, 311576), (8, 194735), (10, 155788), (17, 91640), (20, 77894), (29, 53720), (34, 45820), (40, 38947), (58, 26860), (68, 22910), (79, 19720), (85, 18328), (116, 13430), (136, 11455), (145, 10744), (158, 9860), (170, 9164), (232, 6715), (290, 5372), (316, 4930), (340, 4582), (395, 3944), (493, 3160), (580, 2686), (632, 2465), (680, 2291), (790, 1972), (986, 1580), (1160, 1343)]