18881520

素因数分解:

$2^4\times 3^1\times 5^1\times 7^1\times {\mathrm{11239}}^1$

素因数の和:11262

約数の個数: 80

約数和(自身を含む): 66900480

約数和(自身を除く): 48018960

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 35, 40, 42, 48, 56, 60, 70, 80, 84, 105, 112, 120, 140, 168, 210, 240, 280, 336, 420, 560, 840, 1680, 11239, 22478, 33717, 44956, 56195, 67434, 78673, 89912, 112390, 134868, 157346, 168585, 179824, 224780, 236019, 269736, 314692, 337170, 393365, 449560, 472038, 539472, 629384, 674340, 786730, 899120, 944076, 1180095, 1258768, 1348680, 1573460, 1888152, 2360190, 2697360, 3146920, 3776304, 4720380, 6293840, 9440760, 18881520]

約数ペア:

[(1, 18881520), (2, 9440760), (3, 6293840), (4, 4720380), (5, 3776304), (6, 3146920), (7, 2697360), (8, 2360190), (10, 1888152), (12, 1573460), (14, 1348680), (15, 1258768), (16, 1180095), (20, 944076), (21, 899120), (24, 786730), (28, 674340), (30, 629384), (35, 539472), (40, 472038), (42, 449560), (48, 393365), (56, 337170), (60, 314692), (70, 269736), (80, 236019), (84, 224780), (105, 179824), (112, 168585), (120, 157346), (140, 134868), (168, 112390), (210, 89912), (240, 78673), (280, 67434), (336, 56195), (420, 44956), (560, 33717), (840, 22478), (1680, 11239)]