19680900

素因数分解:

$2^2\times 3^1\times 5^2\times {\mathrm{17}}^2\times {\mathrm{227}}^1$

素因数の和:278

約数の個数: 108

約数和(自身を含む): 60756528

約数和(自身を除く): 41075628

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 17, 20, 25, 30, 34, 50, 51, 60, 68, 75, 85, 100, 102, 150, 170, 204, 227, 255, 289, 300, 340, 425, 454, 510, 578, 681, 850, 867, 908, 1020, 1135, 1156, 1275, 1362, 1445, 1700, 1734, 2270, 2550, 2724, 2890, 3405, 3468, 3859, 4335, 4540, 5100, 5675, 5780, 6810, 7225, 7718, 8670, 11350, 11577, 13620, 14450, 15436, 17025, 17340, 19295, 21675, 22700, 23154, 28900, 34050, 38590, 43350, 46308, 57885, 65603, 68100, 77180, 86700, 96475, 115770, 131206, 192950, 196809, 231540, 262412, 289425, 328015, 385900, 393618, 578850, 656030, 787236, 984045, 1157700, 1312060, 1640075, 1968090, 3280150, 3936180, 4920225, 6560300, 9840450, 19680900]

約数ペア:

[(1, 19680900), (2, 9840450), (3, 6560300), (4, 4920225), (5, 3936180), (6, 3280150), (10, 1968090), (12, 1640075), (15, 1312060), (17, 1157700), (20, 984045), (25, 787236), (30, 656030), (34, 578850), (50, 393618), (51, 385900), (60, 328015), (68, 289425), (75, 262412), (85, 231540), (100, 196809), (102, 192950), (150, 131206), (170, 115770), (204, 96475), (227, 86700), (255, 77180), (289, 68100), (300, 65603), (340, 57885), (425, 46308), (454, 43350), (510, 38590), (578, 34050), (681, 28900), (850, 23154), (867, 22700), (908, 21675), (1020, 19295), (1135, 17340), (1156, 17025), (1275, 15436), (1362, 14450), (1445, 13620), (1700, 11577), (1734, 11350), (2270, 8670), (2550, 7718), (2724, 7225), (2890, 6810), (3405, 5780), (3468, 5675), (3859, 5100), (4335, 4540)]