87311900

素因数分解:

$2^2\times 5^2\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{1429}}^1$

素因数の和:1503

約数の個数: 72

約数和(自身を含む): 208528320

約数和(自身を除く): 121216420

約数列:

[1, 2, 4, 5, 10, 13, 20, 25, 26, 47, 50, 52, 65, 94, 100, 130, 188, 235, 260, 325, 470, 611, 650, 940, 1175, 1222, 1300, 1429, 2350, 2444, 2858, 3055, 4700, 5716, 6110, 7145, 12220, 14290, 15275, 18577, 28580, 30550, 35725, 37154, 61100, 67163, 71450, 74308, 92885, 134326, 142900, 185770, 268652, 335815, 371540, 464425, 671630, 873119, 928850, 1343260, 1679075, 1746238, 1857700, 3358150, 3492476, 4365595, 6716300, 8731190, 17462380, 21827975, 43655950, 87311900]

約数ペア:

[(1, 87311900), (2, 43655950), (4, 21827975), (5, 17462380), (10, 8731190), (13, 6716300), (20, 4365595), (25, 3492476), (26, 3358150), (47, 1857700), (50, 1746238), (52, 1679075), (65, 1343260), (94, 928850), (100, 873119), (130, 671630), (188, 464425), (235, 371540), (260, 335815), (325, 268652), (470, 185770), (611, 142900), (650, 134326), (940, 92885), (1175, 74308), (1222, 71450), (1300, 67163), (1429, 61100), (2350, 37154), (2444, 35725), (2858, 30550), (3055, 28580), (4700, 18577), (5716, 15275), (6110, 14290), (7145, 12220)]