81606900

素因数分解:

$2^2\times 3^1\times 5^2\times {\mathrm{19}}^1\times {\mathrm{103}}^1\times {\mathrm{139}}^1$

素因数の和:278

約数の個数: 144

約数和(自身を含む): 252761600

約数和(自身を除く): 171154700

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 19, 20, 25, 30, 38, 50, 57, 60, 75, 76, 95, 100, 103, 114, 139, 150, 190, 206, 228, 278, 285, 300, 309, 380, 412, 417, 475, 515, 556, 570, 618, 695, 834, 950, 1030, 1140, 1236, 1390, 1425, 1545, 1668, 1900, 1957, 2060, 2085, 2575, 2641, 2780, 2850, 3090, 3475, 3914, 4170, 5150, 5282, 5700, 5871, 6180, 6950, 7725, 7828, 7923, 8340, 9785, 10300, 10425, 10564, 11742, 13205, 13900, 14317, 15450, 15846, 19570, 20850, 23484, 26410, 28634, 29355, 30900, 31692, 39140, 39615, 41700, 42951, 48925, 52820, 57268, 58710, 66025, 71585, 79230, 85902, 97850, 117420, 132050, 143170, 146775, 158460, 171804, 195700, 198075, 214755, 264100, 272023, 286340, 293550, 357925, 396150, 429510, 544046, 587100, 715850, 792300, 816069, 859020, 1073775, 1088092, 1360115, 1431700, 1632138, 2147550, 2720230, 3264276, 4080345, 4295100, 5440460, 6800575, 8160690, 13601150, 16321380, 20401725, 27202300, 40803450, 81606900]

約数ペア:

[(1, 81606900), (2, 40803450), (3, 27202300), (4, 20401725), (5, 16321380), (6, 13601150), (10, 8160690), (12, 6800575), (15, 5440460), (19, 4295100), (20, 4080345), (25, 3264276), (30, 2720230), (38, 2147550), (50, 1632138), (57, 1431700), (60, 1360115), (75, 1088092), (76, 1073775), (95, 859020), (100, 816069), (103, 792300), (114, 715850), (139, 587100), (150, 544046), (190, 429510), (206, 396150), (228, 357925), (278, 293550), (285, 286340), (300, 272023), (309, 264100), (380, 214755), (412, 198075), (417, 195700), (475, 171804), (515, 158460), (556, 146775), (570, 143170), (618, 132050), (695, 117420), (834, 97850), (950, 85902), (1030, 79230), (1140, 71585), (1236, 66025), (1390, 58710), (1425, 57268), (1545, 52820), (1668, 48925), (1900, 42951), (1957, 41700), (2060, 39615), (2085, 39140), (2575, 31692), (2641, 30900), (2780, 29355), (2850, 28634), (3090, 26410), (3475, 23484), (3914, 20850), (4170, 19570), (5150, 15846), (5282, 15450), (5700, 14317), (5871, 13900), (6180, 13205), (6950, 11742), (7725, 10564), (7828, 10425), (7923, 10300), (8340, 9785)]