20017830

素因数分解:

$2^1\times 3^1\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{173}}^1$

素因数の和:238

約数の個数: 128

約数和(自身を含む): 60134400

約数和(自身を除く): 40116570

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 19, 21, 29, 30, 35, 38, 42, 57, 58, 70, 87, 95, 105, 114, 133, 145, 173, 174, 190, 203, 210, 266, 285, 290, 346, 399, 406, 435, 519, 551, 570, 609, 665, 798, 865, 870, 1015, 1038, 1102, 1211, 1218, 1330, 1653, 1730, 1995, 2030, 2422, 2595, 2755, 3045, 3287, 3306, 3633, 3857, 3990, 5017, 5190, 5510, 6055, 6090, 6574, 7266, 7714, 8265, 9861, 10034, 11571, 12110, 15051, 16435, 16530, 18165, 19285, 19722, 23009, 23142, 25085, 30102, 32870, 35119, 36330, 38570, 46018, 49305, 50170, 57855, 69027, 70238, 75255, 95323, 98610, 105357, 115045, 115710, 138054, 150510, 175595, 190646, 210714, 230090, 285969, 345135, 351190, 476615, 526785, 571938, 667261, 690270, 953230, 1053570, 1334522, 1429845, 2001783, 2859690, 3336305, 4003566, 6672610, 10008915, 20017830]

約数ペア:

[(1, 20017830), (2, 10008915), (3, 6672610), (5, 4003566), (6, 3336305), (7, 2859690), (10, 2001783), (14, 1429845), (15, 1334522), (19, 1053570), (21, 953230), (29, 690270), (30, 667261), (35, 571938), (38, 526785), (42, 476615), (57, 351190), (58, 345135), (70, 285969), (87, 230090), (95, 210714), (105, 190646), (114, 175595), (133, 150510), (145, 138054), (173, 115710), (174, 115045), (190, 105357), (203, 98610), (210, 95323), (266, 75255), (285, 70238), (290, 69027), (346, 57855), (399, 50170), (406, 49305), (435, 46018), (519, 38570), (551, 36330), (570, 35119), (609, 32870), (665, 30102), (798, 25085), (865, 23142), (870, 23009), (1015, 19722), (1038, 19285), (1102, 18165), (1211, 16530), (1218, 16435), (1330, 15051), (1653, 12110), (1730, 11571), (1995, 10034), (2030, 9861), (2422, 8265), (2595, 7714), (2755, 7266), (3045, 6574), (3287, 6090), (3306, 6055), (3633, 5510), (3857, 5190), (3990, 5017)]