2891918080

素因数分解:

$2^8\times 5^1\times {\mathrm{31}}^2\times {\mathrm{2351}}^1$

素因数の和:2434

約数の個数: 108

約数和(自身を含む): 7160753376

約数和(自身を除く): 4268835296

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 64, 80, 124, 128, 155, 160, 248, 256, 310, 320, 496, 620, 640, 961, 992, 1240, 1280, 1922, 1984, 2351, 2480, 3844, 3968, 4702, 4805, 4960, 7688, 7936, 9404, 9610, 9920, 11755, 15376, 18808, 19220, 19840, 23510, 30752, 37616, 38440, 39680, 47020, 61504, 72881, 75232, 76880, 94040, 123008, 145762, 150464, 153760, 188080, 246016, 291524, 300928, 307520, 364405, 376160, 583048, 601856, 615040, 728810, 752320, 1166096, 1230080, 1457620, 1504640, 2259311, 2332192, 2915240, 3009280, 4518622, 4664384, 5830480, 9037244, 9328768, 11296555, 11660960, 18074488, 18657536, 22593110, 23321920, 36148976, 45186220, 46643840, 72297952, 90372440, 93287680, 144595904, 180744880, 289191808, 361489760, 578383616, 722979520, 1445959040, 2891918080]

約数ペア:

[(1, 2891918080), (2, 1445959040), (4, 722979520), (5, 578383616), (8, 361489760), (10, 289191808), (16, 180744880), (20, 144595904), (31, 93287680), (32, 90372440), (40, 72297952), (62, 46643840), (64, 45186220), (80, 36148976), (124, 23321920), (128, 22593110), (155, 18657536), (160, 18074488), (248, 11660960), (256, 11296555), (310, 9328768), (320, 9037244), (496, 5830480), (620, 4664384), (640, 4518622), (961, 3009280), (992, 2915240), (1240, 2332192), (1280, 2259311), (1922, 1504640), (1984, 1457620), (2351, 1230080), (2480, 1166096), (3844, 752320), (3968, 728810), (4702, 615040), (4805, 601856), (4960, 583048), (7688, 376160), (7936, 364405), (9404, 307520), (9610, 300928), (9920, 291524), (11755, 246016), (15376, 188080), (18808, 153760), (19220, 150464), (19840, 145762), (23510, 123008), (30752, 94040), (37616, 76880), (38440, 75232), (39680, 72881), (47020, 61504)]