204865640

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{193}}^1\times {\mathrm{223}}^1$

素因数の和:451

約数の個数: 128

約数和(自身を含む): 563189760

約数和(自身を除く): 358324120

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 17, 20, 28, 34, 35, 40, 56, 68, 70, 85, 119, 136, 140, 170, 193, 223, 238, 280, 340, 386, 446, 476, 595, 680, 772, 892, 952, 965, 1115, 1190, 1351, 1544, 1561, 1784, 1930, 2230, 2380, 2702, 3122, 3281, 3791, 3860, 4460, 4760, 5404, 6244, 6562, 6755, 7582, 7720, 7805, 8920, 10808, 12488, 13124, 13510, 15164, 15610, 16405, 18955, 22967, 26248, 26537, 27020, 30328, 31220, 32810, 37910, 43039, 45934, 53074, 54040, 62440, 65620, 75820, 86078, 91868, 106148, 114835, 131240, 132685, 151640, 172156, 183736, 212296, 215195, 229670, 265370, 301273, 344312, 430390, 459340, 530740, 602546, 731663, 860780, 918680, 1061480, 1205092, 1463326, 1506365, 1721560, 2410184, 2926652, 3012730, 3658315, 5121641, 5853304, 6025460, 7316630, 10243282, 12050920, 14633260, 20486564, 25608205, 29266520, 40973128, 51216410, 102432820, 204865640]

約数ペア:

[(1, 204865640), (2, 102432820), (4, 51216410), (5, 40973128), (7, 29266520), (8, 25608205), (10, 20486564), (14, 14633260), (17, 12050920), (20, 10243282), (28, 7316630), (34, 6025460), (35, 5853304), (40, 5121641), (56, 3658315), (68, 3012730), (70, 2926652), (85, 2410184), (119, 1721560), (136, 1506365), (140, 1463326), (170, 1205092), (193, 1061480), (223, 918680), (238, 860780), (280, 731663), (340, 602546), (386, 530740), (446, 459340), (476, 430390), (595, 344312), (680, 301273), (772, 265370), (892, 229670), (952, 215195), (965, 212296), (1115, 183736), (1190, 172156), (1351, 151640), (1544, 132685), (1561, 131240), (1784, 114835), (1930, 106148), (2230, 91868), (2380, 86078), (2702, 75820), (3122, 65620), (3281, 62440), (3791, 54040), (3860, 53074), (4460, 45934), (4760, 43039), (5404, 37910), (6244, 32810), (6562, 31220), (6755, 30328), (7582, 27020), (7720, 26537), (7805, 26248), (8920, 22967), (10808, 18955), (12488, 16405), (13124, 15610), (13510, 15164)]