128720600

素因数分解:

$2^3\times 5^2\times {\mathrm{17}}^3\times {\mathrm{131}}^1$

素因数の和:198

約数の個数: 96

約数和(自身を含む): 320403600

約数和(自身を除く): 191683000

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 25, 34, 40, 50, 68, 85, 100, 131, 136, 170, 200, 262, 289, 340, 425, 524, 578, 655, 680, 850, 1048, 1156, 1310, 1445, 1700, 2227, 2312, 2620, 2890, 3275, 3400, 4454, 4913, 5240, 5780, 6550, 7225, 8908, 9826, 11135, 11560, 13100, 14450, 17816, 19652, 22270, 24565, 26200, 28900, 37859, 39304, 44540, 49130, 55675, 57800, 75718, 89080, 98260, 111350, 122825, 151436, 189295, 196520, 222700, 245650, 302872, 378590, 445400, 491300, 643603, 757180, 946475, 982600, 1287206, 1514360, 1892950, 2574412, 3218015, 3785900, 5148824, 6436030, 7571800, 12872060, 16090075, 25744120, 32180150, 64360300, 128720600]

約数ペア:

[(1, 128720600), (2, 64360300), (4, 32180150), (5, 25744120), (8, 16090075), (10, 12872060), (17, 7571800), (20, 6436030), (25, 5148824), (34, 3785900), (40, 3218015), (50, 2574412), (68, 1892950), (85, 1514360), (100, 1287206), (131, 982600), (136, 946475), (170, 757180), (200, 643603), (262, 491300), (289, 445400), (340, 378590), (425, 302872), (524, 245650), (578, 222700), (655, 196520), (680, 189295), (850, 151436), (1048, 122825), (1156, 111350), (1310, 98260), (1445, 89080), (1700, 75718), (2227, 57800), (2312, 55675), (2620, 49130), (2890, 44540), (3275, 39304), (3400, 37859), (4454, 28900), (4913, 26200), (5240, 24565), (5780, 22270), (6550, 19652), (7225, 17816), (8908, 14450), (9826, 13100), (11135, 11560)]