87803980

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^2\times {\mathrm{1381}}^1$

素因数の和:1435

約数の個数: 72

約数和(自身を含む): 213834096

約数和(自身を除く): 126030116

約数列:

[1, 2, 4, 5, 10, 11, 17, 20, 22, 34, 44, 55, 68, 85, 110, 170, 187, 220, 289, 340, 374, 578, 748, 935, 1156, 1381, 1445, 1870, 2762, 2890, 3179, 3740, 5524, 5780, 6358, 6905, 12716, 13810, 15191, 15895, 23477, 27620, 30382, 31790, 46954, 60764, 63580, 75955, 93908, 117385, 151910, 234770, 258247, 303820, 399109, 469540, 516494, 798218, 1032988, 1291235, 1596436, 1995545, 2582470, 3991090, 4390199, 5164940, 7982180, 8780398, 17560796, 21950995, 43901990, 87803980]

約数ペア:

[(1, 87803980), (2, 43901990), (4, 21950995), (5, 17560796), (10, 8780398), (11, 7982180), (17, 5164940), (20, 4390199), (22, 3991090), (34, 2582470), (44, 1995545), (55, 1596436), (68, 1291235), (85, 1032988), (110, 798218), (170, 516494), (187, 469540), (220, 399109), (289, 303820), (340, 258247), (374, 234770), (578, 151910), (748, 117385), (935, 93908), (1156, 75955), (1381, 63580), (1445, 60764), (1870, 46954), (2762, 31790), (2890, 30382), (3179, 27620), (3740, 23477), (5524, 15895), (5780, 15191), (6358, 13810), (6905, 12716)]