660761480

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{103}}^1\times {\mathrm{367}}^1$

素因数の和:523

約数の個数: 128

約数和(自身を含む): 1653350400

約数和(自身を除く): 992588920

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 23, 38, 40, 46, 76, 92, 95, 103, 115, 152, 184, 190, 206, 230, 367, 380, 412, 437, 460, 515, 734, 760, 824, 874, 920, 1030, 1468, 1748, 1835, 1957, 2060, 2185, 2369, 2936, 3496, 3670, 3914, 4120, 4370, 4738, 6973, 7340, 7828, 8441, 8740, 9476, 9785, 11845, 13946, 14680, 15656, 16882, 17480, 18952, 19570, 23690, 27892, 33764, 34865, 37801, 39140, 42205, 45011, 47380, 55784, 67528, 69730, 75602, 78280, 84410, 90022, 94760, 139460, 151204, 160379, 168820, 180044, 189005, 225055, 278920, 302408, 320758, 337640, 360088, 378010, 450110, 641516, 718219, 756020, 801895, 869423, 900220, 1283032, 1436438, 1512040, 1603790, 1738846, 1800440, 2872876, 3207580, 3477692, 3591095, 4347115, 5745752, 6415160, 6955384, 7182190, 8694230, 14364380, 16519037, 17388460, 28728760, 33038074, 34776920, 66076148, 82595185, 132152296, 165190370, 330380740, 660761480]

約数ペア:

[(1, 660761480), (2, 330380740), (4, 165190370), (5, 132152296), (8, 82595185), (10, 66076148), (19, 34776920), (20, 33038074), (23, 28728760), (38, 17388460), (40, 16519037), (46, 14364380), (76, 8694230), (92, 7182190), (95, 6955384), (103, 6415160), (115, 5745752), (152, 4347115), (184, 3591095), (190, 3477692), (206, 3207580), (230, 2872876), (367, 1800440), (380, 1738846), (412, 1603790), (437, 1512040), (460, 1436438), (515, 1283032), (734, 900220), (760, 869423), (824, 801895), (874, 756020), (920, 718219), (1030, 641516), (1468, 450110), (1748, 378010), (1835, 360088), (1957, 337640), (2060, 320758), (2185, 302408), (2369, 278920), (2936, 225055), (3496, 189005), (3670, 180044), (3914, 168820), (4120, 160379), (4370, 151204), (4738, 139460), (6973, 94760), (7340, 90022), (7828, 84410), (8441, 78280), (8740, 75602), (9476, 69730), (9785, 67528), (11845, 55784), (13946, 47380), (14680, 45011), (15656, 42205), (16882, 39140), (17480, 37801), (18952, 34865), (19570, 33764), (23690, 27892)]