18929500

素因数分解:

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

素因数の和:184

約数の個数: 72

約数和(自身を含む): 44252208

約数和(自身を除く): 25322708

約数列:

[1, 2, 4, 5, 10, 17, 20, 25, 34, 50, 68, 85, 100, 125, 131, 170, 250, 262, 289, 340, 425, 500, 524, 578, 655, 850, 1156, 1310, 1445, 1700, 2125, 2227, 2620, 2890, 3275, 4250, 4454, 5780, 6550, 7225, 8500, 8908, 11135, 13100, 14450, 16375, 22270, 28900, 32750, 36125, 37859, 44540, 55675, 65500, 72250, 75718, 111350, 144500, 151436, 189295, 222700, 278375, 378590, 556750, 757180, 946475, 1113500, 1892950, 3785900, 4732375, 9464750, 18929500]

約数ペア:

[(1, 18929500), (2, 9464750), (4, 4732375), (5, 3785900), (10, 1892950), (17, 1113500), (20, 946475), (25, 757180), (34, 556750), (50, 378590), (68, 278375), (85, 222700), (100, 189295), (125, 151436), (131, 144500), (170, 111350), (250, 75718), (262, 72250), (289, 65500), (340, 55675), (425, 44540), (500, 37859), (524, 36125), (578, 32750), (655, 28900), (850, 22270), (1156, 16375), (1310, 14450), (1445, 13100), (1700, 11135), (2125, 8908), (2227, 8500), (2620, 7225), (2890, 6550), (3275, 5780), (4250, 4454)]