21036078480

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{1997}}^1\times {\mathrm{43891}}^1$

素因数の和:45904

約数の個数: 80

約数和(自身を含む): 65245984704

約数和(自身を除く): 44209906224

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 240, 1997, 3994, 5991, 7988, 9985, 11982, 15976, 19970, 23964, 29955, 31952, 39940, 43891, 47928, 59910, 79880, 87782, 95856, 119820, 131673, 159760, 175564, 219455, 239640, 263346, 351128, 438910, 479280, 526692, 658365, 702256, 877820, 1053384, 1316730, 1755640, 2106768, 2633460, 3511280, 5266920, 10533840, 87650327, 175300654, 262950981, 350601308, 438251635, 525901962, 701202616, 876503270, 1051803924, 1314754905, 1402405232, 1753006540, 2103607848, 2629509810, 3506013080, 4207215696, 5259019620, 7012026160, 10518039240, 21036078480]

約数ペア:

[(1, 21036078480), (2, 10518039240), (3, 7012026160), (4, 5259019620), (5, 4207215696), (6, 3506013080), (8, 2629509810), (10, 2103607848), (12, 1753006540), (15, 1402405232), (16, 1314754905), (20, 1051803924), (24, 876503270), (30, 701202616), (40, 525901962), (48, 438251635), (60, 350601308), (80, 262950981), (120, 175300654), (240, 87650327), (1997, 10533840), (3994, 5266920), (5991, 3511280), (7988, 2633460), (9985, 2106768), (11982, 1755640), (15976, 1316730), (19970, 1053384), (23964, 877820), (29955, 702256), (31952, 658365), (39940, 526692), (43891, 479280), (47928, 438910), (59910, 351128), (79880, 263346), (87782, 239640), (95856, 219455), (119820, 175564), (131673, 159760)]