205838640

素因数分解:

$2^4\times 3^2\times 5^1\times 7^1\times {\mathrm{40841}}^1$

素因数の和:40867

約数の個数: 120

約数和(自身を含む): 790047648

約数和(自身を除く): 584209008

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 24, 28, 30, 35, 36, 40, 42, 45, 48, 56, 60, 63, 70, 72, 80, 84, 90, 105, 112, 120, 126, 140, 144, 168, 180, 210, 240, 252, 280, 315, 336, 360, 420, 504, 560, 630, 720, 840, 1008, 1260, 1680, 2520, 5040, 40841, 81682, 122523, 163364, 204205, 245046, 285887, 326728, 367569, 408410, 490092, 571774, 612615, 653456, 735138, 816820, 857661, 980184, 1143548, 1225230, 1429435, 1470276, 1633640, 1715322, 1837845, 1960368, 2287096, 2450460, 2572983, 2858870, 2940552, 3267280, 3430644, 3675690, 4288305, 4574192, 4900920, 5145966, 5717740, 5881104, 6861288, 7351380, 8576610, 9801840, 10291932, 11435480, 12864915, 13722576, 14702760, 17153220, 20583864, 22870960, 25729830, 29405520, 34306440, 41167728, 51459660, 68612880, 102919320, 205838640]

約数ペア:

[(1, 205838640), (2, 102919320), (3, 68612880), (4, 51459660), (5, 41167728), (6, 34306440), (7, 29405520), (8, 25729830), (9, 22870960), (10, 20583864), (12, 17153220), (14, 14702760), (15, 13722576), (16, 12864915), (18, 11435480), (20, 10291932), (21, 9801840), (24, 8576610), (28, 7351380), (30, 6861288), (35, 5881104), (36, 5717740), (40, 5145966), (42, 4900920), (45, 4574192), (48, 4288305), (56, 3675690), (60, 3430644), (63, 3267280), (70, 2940552), (72, 2858870), (80, 2572983), (84, 2450460), (90, 2287096), (105, 1960368), (112, 1837845), (120, 1715322), (126, 1633640), (140, 1470276), (144, 1429435), (168, 1225230), (180, 1143548), (210, 980184), (240, 857661), (252, 816820), (280, 735138), (315, 653456), (336, 612615), (360, 571774), (420, 490092), (504, 408410), (560, 367569), (630, 326728), (720, 285887), (840, 245046), (1008, 204205), (1260, 163364), (1680, 122523), (2520, 81682), (5040, 40841)]