157305520

素因数分解:

$2^4\times 5^1\times {\mathrm{41}}^1\times {\mathrm{199}}^1\times {\mathrm{241}}^1$

素因数の和:494

約数の個数: 80

約数和(自身を含む): 378100800

約数和(自身を除く): 220795280

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 41, 80, 82, 164, 199, 205, 241, 328, 398, 410, 482, 656, 796, 820, 964, 995, 1205, 1592, 1640, 1928, 1990, 2410, 3184, 3280, 3856, 3980, 4820, 7960, 8159, 9640, 9881, 15920, 16318, 19280, 19762, 32636, 39524, 40795, 47959, 49405, 65272, 79048, 81590, 95918, 98810, 130544, 158096, 163180, 191836, 197620, 239795, 326360, 383672, 395240, 479590, 652720, 767344, 790480, 959180, 1918360, 1966319, 3836720, 3932638, 7865276, 9831595, 15730552, 19663190, 31461104, 39326380, 78652760, 157305520]

約数ペア:

[(1, 157305520), (2, 78652760), (4, 39326380), (5, 31461104), (8, 19663190), (10, 15730552), (16, 9831595), (20, 7865276), (40, 3932638), (41, 3836720), (80, 1966319), (82, 1918360), (164, 959180), (199, 790480), (205, 767344), (241, 652720), (328, 479590), (398, 395240), (410, 383672), (482, 326360), (656, 239795), (796, 197620), (820, 191836), (964, 163180), (995, 158096), (1205, 130544), (1592, 98810), (1640, 95918), (1928, 81590), (1990, 79048), (2410, 65272), (3184, 49405), (3280, 47959), (3856, 40795), (3980, 39524), (4820, 32636), (7960, 19762), (8159, 19280), (9640, 16318), (9881, 15920)]