216646640

素因数分解:

$2^4\times 5^1\times 7^2\times {\mathrm{17}}^1\times {\mathrm{3251}}^1$

素因数の和:3295

約数の個数: 120

約数和(自身を含む): 620598672

約数和(自身を除く): 403952032

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 17, 20, 28, 34, 35, 40, 49, 56, 68, 70, 80, 85, 98, 112, 119, 136, 140, 170, 196, 238, 245, 272, 280, 340, 392, 476, 490, 560, 595, 680, 784, 833, 952, 980, 1190, 1360, 1666, 1904, 1960, 2380, 3251, 3332, 3920, 4165, 4760, 6502, 6664, 8330, 9520, 13004, 13328, 16255, 16660, 22757, 26008, 32510, 33320, 45514, 52016, 55267, 65020, 66640, 91028, 110534, 113785, 130040, 159299, 182056, 221068, 227570, 260080, 276335, 318598, 364112, 386869, 442136, 455140, 552670, 637196, 773738, 796495, 884272, 910280, 1105340, 1274392, 1547476, 1592990, 1820560, 1934345, 2210680, 2548784, 2708083, 3094952, 3185980, 3868690, 4421360, 5416166, 6189904, 6371960, 7737380, 10832332, 12743920, 13540415, 15474760, 21664664, 27080830, 30949520, 43329328, 54161660, 108323320, 216646640]

約数ペア:

[(1, 216646640), (2, 108323320), (4, 54161660), (5, 43329328), (7, 30949520), (8, 27080830), (10, 21664664), (14, 15474760), (16, 13540415), (17, 12743920), (20, 10832332), (28, 7737380), (34, 6371960), (35, 6189904), (40, 5416166), (49, 4421360), (56, 3868690), (68, 3185980), (70, 3094952), (80, 2708083), (85, 2548784), (98, 2210680), (112, 1934345), (119, 1820560), (136, 1592990), (140, 1547476), (170, 1274392), (196, 1105340), (238, 910280), (245, 884272), (272, 796495), (280, 773738), (340, 637196), (392, 552670), (476, 455140), (490, 442136), (560, 386869), (595, 364112), (680, 318598), (784, 276335), (833, 260080), (952, 227570), (980, 221068), (1190, 182056), (1360, 159299), (1666, 130040), (1904, 113785), (1960, 110534), (2380, 91028), (3251, 66640), (3332, 65020), (3920, 55267), (4165, 52016), (4760, 45514), (6502, 33320), (6664, 32510), (8330, 26008), (9520, 22757), (13004, 16660), (13328, 16255)]