328531280

素因数分解:

$2^4\times 5^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{401}}^1$

素因数の和:458

約数の個数: 240

約数和(自身を含む): 1022880960

約数和(自身を除く): 694349680

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, 95, 98, 110, 112, 133, 140, 152, 154, 176, 190, 196, 209, 220, 245, 266, 280, 304, 308, 380, 385, 392, 401, 418, 440, 490, 532, 539, 560, 616, 665, 760, 770, 784, 802, 836, 880, 931, 980, 1045, 1064, 1078, 1232, 1330, 1463, 1520, 1540, 1604, 1672, 1862, 1960, 2005, 2090, 2128, 2156, 2660, 2695, 2807, 2926, 3080, 3208, 3344, 3724, 3920, 4010, 4180, 4312, 4411, 4655, 5320, 5390, 5614, 5852, 6160, 6416, 7315, 7448, 7619, 8020, 8360, 8624, 8822, 9310, 10241, 10640, 10780, 11228, 11704, 14035, 14630, 14896, 15238, 16040, 16720, 17644, 18620, 19649, 20482, 21560, 22055, 22456, 23408, 28070, 29260, 30476, 30877, 32080, 35288, 37240, 38095, 39298, 40964, 43120, 44110, 44912, 51205, 53333, 56140, 58520, 60952, 61754, 70576, 74480, 76190, 78596, 81928, 83809, 88220, 98245, 102410, 106666, 112280, 117040, 121904, 123508, 152380, 154385, 157192, 163856, 167618, 176440, 196490, 204820, 213332, 216139, 224560, 247016, 266665, 304760, 308770, 314384, 335236, 352880, 373331, 392980, 409640, 419045, 426664, 432278, 494032, 533330, 586663, 609520, 617540, 670472, 746662, 785960, 819280, 838090, 853328, 864556, 1066660, 1080695, 1173326, 1235080, 1340944, 1493324, 1571920, 1676180, 1729112, 1866655, 2133320, 2161390, 2346652, 2470160, 2933315, 2986648, 3352360, 3458224, 3733310, 4106641, 4266640, 4322780, 4693304, 5866630, 5973296, 6704720, 7466620, 8213282, 8645560, 9386608, 11733260, 14933240, 16426564, 17291120, 20533205, 23466520, 29866480, 32853128, 41066410, 46933040, 65706256, 82132820, 164265640, 328531280]

約数ペア:

[(1, 328531280), (2, 164265640), (4, 82132820), (5, 65706256), (7, 46933040), (8, 41066410), (10, 32853128), (11, 29866480), (14, 23466520), (16, 20533205), (19, 17291120), (20, 16426564), (22, 14933240), (28, 11733260), (35, 9386608), (38, 8645560), (40, 8213282), (44, 7466620), (49, 6704720), (55, 5973296), (56, 5866630), (70, 4693304), (76, 4322780), (77, 4266640), (80, 4106641), (88, 3733310), (95, 3458224), (98, 3352360), (110, 2986648), (112, 2933315), (133, 2470160), (140, 2346652), (152, 2161390), (154, 2133320), (176, 1866655), (190, 1729112), (196, 1676180), (209, 1571920), (220, 1493324), (245, 1340944), (266, 1235080), (280, 1173326), (304, 1080695), (308, 1066660), (380, 864556), (385, 853328), (392, 838090), (401, 819280), (418, 785960), (440, 746662), (490, 670472), (532, 617540), (539, 609520), (560, 586663), (616, 533330), (665, 494032), (760, 432278), (770, 426664), (784, 419045), (802, 409640), (836, 392980), (880, 373331), (931, 352880), (980, 335236), (1045, 314384), (1064, 308770), (1078, 304760), (1232, 266665), (1330, 247016), (1463, 224560), (1520, 216139), (1540, 213332), (1604, 204820), (1672, 196490), (1862, 176440), (1960, 167618), (2005, 163856), (2090, 157192), (2128, 154385), (2156, 152380), (2660, 123508), (2695, 121904), (2807, 117040), (2926, 112280), (3080, 106666), (3208, 102410), (3344, 98245), (3724, 88220), (3920, 83809), (4010, 81928), (4180, 78596), (4312, 76190), (4411, 74480), (4655, 70576), (5320, 61754), (5390, 60952), (5614, 58520), (5852, 56140), (6160, 53333), (6416, 51205), (7315, 44912), (7448, 44110), (7619, 43120), (8020, 40964), (8360, 39298), (8624, 38095), (8822, 37240), (9310, 35288), (10241, 32080), (10640, 30877), (10780, 30476), (11228, 29260), (11704, 28070), (14035, 23408), (14630, 22456), (14896, 22055), (15238, 21560), (16040, 20482), (16720, 19649), (17644, 18620)]