320427400

素因数分解:

$2^3\times 5^2\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{43}}^1\times {\mathrm{53}}^1$

素因数の和:168

約数の個数: 192

約数和(自身を含む): 839678400

約数和(自身を除く): 519251000

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 25, 37, 38, 40, 43, 50, 53, 74, 76, 86, 95, 100, 106, 148, 152, 172, 185, 190, 200, 212, 215, 265, 296, 344, 370, 380, 424, 430, 475, 530, 703, 740, 760, 817, 860, 925, 950, 1007, 1060, 1075, 1325, 1406, 1480, 1591, 1634, 1720, 1850, 1900, 1961, 2014, 2120, 2150, 2279, 2650, 2812, 3182, 3268, 3515, 3700, 3800, 3922, 4028, 4085, 4300, 4558, 5035, 5300, 5624, 6364, 6536, 7030, 7400, 7844, 7955, 8056, 8170, 8600, 9116, 9805, 10070, 10600, 11395, 12728, 14060, 15688, 15910, 16340, 17575, 18232, 19610, 20140, 20425, 22790, 25175, 28120, 30229, 31820, 32680, 35150, 37259, 39220, 39775, 40280, 40850, 43301, 45580, 49025, 50350, 56975, 60458, 63640, 70300, 74518, 78440, 79550, 81700, 84323, 86602, 91160, 98050, 100700, 113950, 120916, 140600, 149036, 151145, 159100, 163400, 168646, 173204, 186295, 196100, 201400, 216505, 227900, 241832, 298072, 302290, 318200, 337292, 346408, 372590, 392200, 421615, 433010, 455800, 604580, 674584, 745180, 755725, 843230, 866020, 931475, 1082525, 1209160, 1490360, 1511450, 1602137, 1686460, 1732040, 1862950, 2108075, 2165050, 3022900, 3204274, 3372920, 3725900, 4216150, 4330100, 6045800, 6408548, 7451800, 8010685, 8432300, 8660200, 12817096, 16021370, 16864600, 32042740, 40053425, 64085480, 80106850, 160213700, 320427400]

約数ペア:

[(1, 320427400), (2, 160213700), (4, 80106850), (5, 64085480), (8, 40053425), (10, 32042740), (19, 16864600), (20, 16021370), (25, 12817096), (37, 8660200), (38, 8432300), (40, 8010685), (43, 7451800), (50, 6408548), (53, 6045800), (74, 4330100), (76, 4216150), (86, 3725900), (95, 3372920), (100, 3204274), (106, 3022900), (148, 2165050), (152, 2108075), (172, 1862950), (185, 1732040), (190, 1686460), (200, 1602137), (212, 1511450), (215, 1490360), (265, 1209160), (296, 1082525), (344, 931475), (370, 866020), (380, 843230), (424, 755725), (430, 745180), (475, 674584), (530, 604580), (703, 455800), (740, 433010), (760, 421615), (817, 392200), (860, 372590), (925, 346408), (950, 337292), (1007, 318200), (1060, 302290), (1075, 298072), (1325, 241832), (1406, 227900), (1480, 216505), (1591, 201400), (1634, 196100), (1720, 186295), (1850, 173204), (1900, 168646), (1961, 163400), (2014, 159100), (2120, 151145), (2150, 149036), (2279, 140600), (2650, 120916), (2812, 113950), (3182, 100700), (3268, 98050), (3515, 91160), (3700, 86602), (3800, 84323), (3922, 81700), (4028, 79550), (4085, 78440), (4300, 74518), (4558, 70300), (5035, 63640), (5300, 60458), (5624, 56975), (6364, 50350), (6536, 49025), (7030, 45580), (7400, 43301), (7844, 40850), (7955, 40280), (8056, 39775), (8170, 39220), (8600, 37259), (9116, 35150), (9805, 32680), (10070, 31820), (10600, 30229), (11395, 28120), (12728, 25175), (14060, 22790), (15688, 20425), (15910, 20140), (16340, 19610), (17575, 18232)]