20315850

素因数分解:

$2^1\times 3^1\times 5^2\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{257}}^1$

素因数の和:320

約数の個数: 96

約数和(自身を含む): 55282176

約数和(自身を除く): 34966326

約数列:

[1, 2, 3, 5, 6, 10, 15, 17, 25, 30, 31, 34, 50, 51, 62, 75, 85, 93, 102, 150, 155, 170, 186, 255, 257, 310, 425, 465, 510, 514, 527, 771, 775, 850, 930, 1054, 1275, 1285, 1542, 1550, 1581, 2325, 2550, 2570, 2635, 3162, 3855, 4369, 4650, 5270, 6425, 7710, 7905, 7967, 8738, 12850, 13107, 13175, 15810, 15934, 19275, 21845, 23901, 26214, 26350, 38550, 39525, 39835, 43690, 47802, 65535, 79050, 79670, 109225, 119505, 131070, 135439, 199175, 218450, 239010, 270878, 327675, 398350, 406317, 597525, 655350, 677195, 812634, 1195050, 1354390, 2031585, 3385975, 4063170, 6771950, 10157925, 20315850]

約数ペア:

[(1, 20315850), (2, 10157925), (3, 6771950), (5, 4063170), (6, 3385975), (10, 2031585), (15, 1354390), (17, 1195050), (25, 812634), (30, 677195), (31, 655350), (34, 597525), (50, 406317), (51, 398350), (62, 327675), (75, 270878), (85, 239010), (93, 218450), (102, 199175), (150, 135439), (155, 131070), (170, 119505), (186, 109225), (255, 79670), (257, 79050), (310, 65535), (425, 47802), (465, 43690), (510, 39835), (514, 39525), (527, 38550), (771, 26350), (775, 26214), (850, 23901), (930, 21845), (1054, 19275), (1275, 15934), (1285, 15810), (1542, 13175), (1550, 13107), (1581, 12850), (2325, 8738), (2550, 7967), (2570, 7905), (2635, 7710), (3162, 6425), (3855, 5270), (4369, 4650)]