397447631720

素因数分解:

$2^3\times 5^1\times {\mathrm{79}}^1\times {\mathrm{139}}^1\times {\mathrm{199}}^1\times {\mathrm{4547}}^1$

素因数の和:4975

約数の個数: 128

約数和(自身を含む): 916876800000

約数和(自身を除く): 519429168280

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 79, 139, 158, 199, 278, 316, 395, 398, 556, 632, 695, 790, 796, 995, 1112, 1390, 1580, 1592, 1990, 2780, 3160, 3980, 4547, 5560, 7960, 9094, 10981, 15721, 18188, 21962, 22735, 27661, 31442, 36376, 43924, 45470, 54905, 55322, 62884, 78605, 87848, 90940, 109810, 110644, 125768, 138305, 157210, 181880, 219620, 221288, 276610, 314420, 359213, 439240, 553220, 628840, 632033, 718426, 904853, 1106440, 1264066, 1436852, 1796065, 1809706, 2185219, 2528132, 2873704, 3160165, 3592130, 3619412, 4370438, 4524265, 5056264, 6320330, 7184260, 7238824, 8740876, 9048530, 10926095, 12640660, 14368520, 17481752, 18097060, 21852190, 25281320, 36194120, 43704380, 49930607, 71483387, 87408760, 99861214, 125774567, 142966774, 199722428, 249653035, 251549134, 285933548, 357416935, 399444856, 499306070, 503098268, 571867096, 628872835, 714833870, 998612140, 1006196536, 1257745670, 1429667740, 1997224280, 2515491340, 2859335480, 5030982680, 9936190793, 19872381586, 39744763172, 49680953965, 79489526344, 99361907930, 198723815860, 397447631720]

約数ペア:

[(1, 397447631720), (2, 198723815860), (4, 99361907930), (5, 79489526344), (8, 49680953965), (10, 39744763172), (20, 19872381586), (40, 9936190793), (79, 5030982680), (139, 2859335480), (158, 2515491340), (199, 1997224280), (278, 1429667740), (316, 1257745670), (395, 1006196536), (398, 998612140), (556, 714833870), (632, 628872835), (695, 571867096), (790, 503098268), (796, 499306070), (995, 399444856), (1112, 357416935), (1390, 285933548), (1580, 251549134), (1592, 249653035), (1990, 199722428), (2780, 142966774), (3160, 125774567), (3980, 99861214), (4547, 87408760), (5560, 71483387), (7960, 49930607), (9094, 43704380), (10981, 36194120), (15721, 25281320), (18188, 21852190), (21962, 18097060), (22735, 17481752), (27661, 14368520), (31442, 12640660), (36376, 10926095), (43924, 9048530), (45470, 8740876), (54905, 7238824), (55322, 7184260), (62884, 6320330), (78605, 5056264), (87848, 4524265), (90940, 4370438), (109810, 3619412), (110644, 3592130), (125768, 3160165), (138305, 2873704), (157210, 2528132), (181880, 2185219), (219620, 1809706), (221288, 1796065), (276610, 1436852), (314420, 1264066), (359213, 1106440), (439240, 904853), (553220, 718426), (628840, 632033)]