74719780

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^2\times {\mathrm{79}}^1\times {\mathrm{131}}^1$

素因数の和:257

約数の個数: 72

約数和(自身を含む): 168981120

約数和(自身を除く): 94261340

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 79, 95, 131, 158, 190, 262, 316, 361, 380, 395, 524, 655, 722, 790, 1310, 1444, 1501, 1580, 1805, 2489, 2620, 3002, 3610, 4978, 6004, 7220, 7505, 9956, 10349, 12445, 15010, 20698, 24890, 28519, 30020, 41396, 47291, 49780, 51745, 57038, 94582, 103490, 114076, 142595, 189164, 196631, 206980, 236455, 285190, 393262, 472910, 570380, 786524, 945820, 983155, 1966310, 3735989, 3932620, 7471978, 14943956, 18679945, 37359890, 74719780]

約数ペア:

[(1, 74719780), (2, 37359890), (4, 18679945), (5, 14943956), (10, 7471978), (19, 3932620), (20, 3735989), (38, 1966310), (76, 983155), (79, 945820), (95, 786524), (131, 570380), (158, 472910), (190, 393262), (262, 285190), (316, 236455), (361, 206980), (380, 196631), (395, 189164), (524, 142595), (655, 114076), (722, 103490), (790, 94582), (1310, 57038), (1444, 51745), (1501, 49780), (1580, 47291), (1805, 41396), (2489, 30020), (2620, 28519), (3002, 24890), (3610, 20698), (4978, 15010), (6004, 12445), (7220, 10349), (7505, 9956)]