21284110480

素因数分解:

$2^4\times 5^1\times {\mathrm{79}}^1\times {\mathrm{113}}^1\times {\mathrm{29803}}^1$

素因数の和:30008

約数の個数: 80

約数和(自身を含む): 50557121280

約数和(自身を除く): 29273010800

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 79, 80, 113, 158, 226, 316, 395, 452, 565, 632, 790, 904, 1130, 1264, 1580, 1808, 2260, 3160, 4520, 6320, 8927, 9040, 17854, 29803, 35708, 44635, 59606, 71416, 89270, 119212, 142832, 149015, 178540, 238424, 298030, 357080, 476848, 596060, 714160, 1192120, 2354437, 2384240, 3367739, 4708874, 6735478, 9417748, 11772185, 13470956, 16838695, 18835496, 23544370, 26941912, 33677390, 37670992, 47088740, 53883824, 67354780, 94177480, 134709560, 188354960, 266051381, 269419120, 532102762, 1064205524, 1330256905, 2128411048, 2660513810, 4256822096, 5321027620, 10642055240, 21284110480]

約数ペア:

[(1, 21284110480), (2, 10642055240), (4, 5321027620), (5, 4256822096), (8, 2660513810), (10, 2128411048), (16, 1330256905), (20, 1064205524), (40, 532102762), (79, 269419120), (80, 266051381), (113, 188354960), (158, 134709560), (226, 94177480), (316, 67354780), (395, 53883824), (452, 47088740), (565, 37670992), (632, 33677390), (790, 26941912), (904, 23544370), (1130, 18835496), (1264, 16838695), (1580, 13470956), (1808, 11772185), (2260, 9417748), (3160, 6735478), (4520, 4708874), (6320, 3367739), (8927, 2384240), (9040, 2354437), (17854, 1192120), (29803, 714160), (35708, 596060), (44635, 476848), (59606, 357080), (71416, 298030), (89270, 238424), (119212, 178540), (142832, 149015)]