20872600

素因数分解:

$2^3\times 5^2\times 7^1\times {\mathrm{17}}^1\times {\mathrm{877}}^1$

素因数の和:917

約数の個数: 96

約数和(自身を含む): 58790880

約数和(自身を除く): 37918280

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 17, 20, 25, 28, 34, 35, 40, 50, 56, 68, 70, 85, 100, 119, 136, 140, 170, 175, 200, 238, 280, 340, 350, 425, 476, 595, 680, 700, 850, 877, 952, 1190, 1400, 1700, 1754, 2380, 2975, 3400, 3508, 4385, 4760, 5950, 6139, 7016, 8770, 11900, 12278, 14909, 17540, 21925, 23800, 24556, 29818, 30695, 35080, 43850, 49112, 59636, 61390, 74545, 87700, 104363, 119272, 122780, 149090, 153475, 175400, 208726, 245560, 298180, 306950, 372725, 417452, 521815, 596360, 613900, 745450, 834904, 1043630, 1227800, 1490900, 2087260, 2609075, 2981800, 4174520, 5218150, 10436300, 20872600]

約数ペア:

[(1, 20872600), (2, 10436300), (4, 5218150), (5, 4174520), (7, 2981800), (8, 2609075), (10, 2087260), (14, 1490900), (17, 1227800), (20, 1043630), (25, 834904), (28, 745450), (34, 613900), (35, 596360), (40, 521815), (50, 417452), (56, 372725), (68, 306950), (70, 298180), (85, 245560), (100, 208726), (119, 175400), (136, 153475), (140, 149090), (170, 122780), (175, 119272), (200, 104363), (238, 87700), (280, 74545), (340, 61390), (350, 59636), (425, 49112), (476, 43850), (595, 35080), (680, 30695), (700, 29818), (850, 24556), (877, 23800), (952, 21925), (1190, 17540), (1400, 14909), (1700, 12278), (1754, 11900), (2380, 8770), (2975, 7016), (3400, 6139), (3508, 5950), (4385, 4760)]