887185780

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^2\times {\mathrm{199}}^1\times {\mathrm{1319}}^1$

素因数の和:1553

約数の個数: 72

約数和(自身を含む): 2029104000

約数和(自身を除く): 1141918220

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 169, 199, 260, 338, 398, 676, 796, 845, 995, 1319, 1690, 1990, 2587, 2638, 3380, 3980, 5174, 5276, 6595, 10348, 12935, 13190, 17147, 25870, 26380, 33631, 34294, 51740, 67262, 68588, 85735, 134524, 168155, 171470, 222911, 262481, 336310, 342940, 445822, 524962, 672620, 891644, 1049924, 1114555, 1312405, 2229110, 2624810, 3412253, 4458220, 5249620, 6824506, 13649012, 17061265, 34122530, 44359289, 68245060, 88718578, 177437156, 221796445, 443592890, 887185780]

約数ペア:

[(1, 887185780), (2, 443592890), (4, 221796445), (5, 177437156), (10, 88718578), (13, 68245060), (20, 44359289), (26, 34122530), (52, 17061265), (65, 13649012), (130, 6824506), (169, 5249620), (199, 4458220), (260, 3412253), (338, 2624810), (398, 2229110), (676, 1312405), (796, 1114555), (845, 1049924), (995, 891644), (1319, 672620), (1690, 524962), (1990, 445822), (2587, 342940), (2638, 336310), (3380, 262481), (3980, 222911), (5174, 171470), (5276, 168155), (6595, 134524), (10348, 85735), (12935, 68588), (13190, 67262), (17147, 51740), (25870, 34294), (26380, 33631)]