72915920

素因数分解:

$2^4\times 5^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{89}}^1$

素因数の和:146

約数の個数: 240

約数和(自身を含む): 229003200

約数和(自身を除く): 156087280

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 14, 16, 19, 20, 22, 28, 35, 38, 40, 44, 49, 55, 56, 70, 76, 77, 80, 88, 89, 95, 98, 110, 112, 133, 140, 152, 154, 176, 178, 190, 196, 209, 220, 245, 266, 280, 304, 308, 356, 380, 385, 392, 418, 440, 445, 490, 532, 539, 560, 616, 623, 665, 712, 760, 770, 784, 836, 880, 890, 931, 979, 980, 1045, 1064, 1078, 1232, 1246, 1330, 1424, 1463, 1520, 1540, 1672, 1691, 1780, 1862, 1958, 1960, 2090, 2128, 2156, 2492, 2660, 2695, 2926, 3080, 3115, 3344, 3382, 3560, 3724, 3916, 3920, 4180, 4312, 4361, 4655, 4895, 4984, 5320, 5390, 5852, 6160, 6230, 6764, 6853, 7120, 7315, 7448, 7832, 8360, 8455, 8624, 8722, 9310, 9790, 9968, 10241, 10640, 10780, 11704, 11837, 12460, 13528, 13706, 14630, 14896, 15664, 16720, 16910, 17444, 18601, 18620, 19580, 20482, 21560, 21805, 23408, 23674, 24920, 27056, 27412, 29260, 33820, 34265, 34888, 37202, 37240, 39160, 40964, 43120, 43610, 47348, 47971, 49840, 51205, 54824, 58520, 59185, 67640, 68530, 69776, 74404, 74480, 78320, 81928, 82859, 87220, 93005, 94696, 95942, 102410, 109648, 117040, 118370, 130207, 135280, 137060, 148808, 163856, 165718, 174440, 186010, 189392, 191884, 204820, 236740, 239855, 260414, 274120, 297616, 331436, 348880, 372020, 383768, 409640, 414295, 473480, 479710, 520828, 548240, 651035, 662872, 744040, 767536, 819280, 828590, 911449, 946960, 959420, 1041656, 1302070, 1325744, 1488080, 1657180, 1822898, 1918840, 2083312, 2604140, 3314360, 3645796, 3837680, 4557245, 5208280, 6628720, 7291592, 9114490, 10416560, 14583184, 18228980, 36457960, 72915920]

約数ペア:

[(1, 72915920), (2, 36457960), (4, 18228980), (5, 14583184), (7, 10416560), (8, 9114490), (10, 7291592), (11, 6628720), (14, 5208280), (16, 4557245), (19, 3837680), (20, 3645796), (22, 3314360), (28, 2604140), (35, 2083312), (38, 1918840), (40, 1822898), (44, 1657180), (49, 1488080), (55, 1325744), (56, 1302070), (70, 1041656), (76, 959420), (77, 946960), (80, 911449), (88, 828590), (89, 819280), (95, 767536), (98, 744040), (110, 662872), (112, 651035), (133, 548240), (140, 520828), (152, 479710), (154, 473480), (176, 414295), (178, 409640), (190, 383768), (196, 372020), (209, 348880), (220, 331436), (245, 297616), (266, 274120), (280, 260414), (304, 239855), (308, 236740), (356, 204820), (380, 191884), (385, 189392), (392, 186010), (418, 174440), (440, 165718), (445, 163856), (490, 148808), (532, 137060), (539, 135280), (560, 130207), (616, 118370), (623, 117040), (665, 109648), (712, 102410), (760, 95942), (770, 94696), (784, 93005), (836, 87220), (880, 82859), (890, 81928), (931, 78320), (979, 74480), (980, 74404), (1045, 69776), (1064, 68530), (1078, 67640), (1232, 59185), (1246, 58520), (1330, 54824), (1424, 51205), (1463, 49840), (1520, 47971), (1540, 47348), (1672, 43610), (1691, 43120), (1780, 40964), (1862, 39160), (1958, 37240), (1960, 37202), (2090, 34888), (2128, 34265), (2156, 33820), (2492, 29260), (2660, 27412), (2695, 27056), (2926, 24920), (3080, 23674), (3115, 23408), (3344, 21805), (3382, 21560), (3560, 20482), (3724, 19580), (3916, 18620), (3920, 18601), (4180, 17444), (4312, 16910), (4361, 16720), (4655, 15664), (4895, 14896), (4984, 14630), (5320, 13706), (5390, 13528), (5852, 12460), (6160, 11837), (6230, 11704), (6764, 10780), (6853, 10640), (7120, 10241), (7315, 9968), (7448, 9790), (7832, 9310), (8360, 8722), (8455, 8624)]