128138580

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{419}}^1\times {\mathrm{1699}}^1$

素因数の和:2133

約数の個数: 72

約数和(自身を含む): 389844000

約数和(自身を除く): 261705420

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 419, 838, 1257, 1676, 1699, 2095, 2514, 3398, 3771, 4190, 5028, 5097, 6285, 6796, 7542, 8380, 8495, 10194, 12570, 15084, 15291, 16990, 18855, 20388, 25140, 25485, 30582, 33980, 37710, 50970, 61164, 75420, 76455, 101940, 152910, 305820, 711881, 1423762, 2135643, 2847524, 3559405, 4271286, 6406929, 7118810, 8542572, 10678215, 12813858, 14237620, 21356430, 25627716, 32034645, 42712860, 64069290, 128138580]

約数ペア:

[(1, 128138580), (2, 64069290), (3, 42712860), (4, 32034645), (5, 25627716), (6, 21356430), (9, 14237620), (10, 12813858), (12, 10678215), (15, 8542572), (18, 7118810), (20, 6406929), (30, 4271286), (36, 3559405), (45, 2847524), (60, 2135643), (90, 1423762), (180, 711881), (419, 305820), (838, 152910), (1257, 101940), (1676, 76455), (1699, 75420), (2095, 61164), (2514, 50970), (3398, 37710), (3771, 33980), (4190, 30582), (5028, 25485), (5097, 25140), (6285, 20388), (6796, 18855), (7542, 16990), (8380, 15291), (8495, 15084), (10194, 12570)]