320809720

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{11}}^2\times {\mathrm{17}}^1\times {\mathrm{557}}^1$

素因数の和:614

約数の個数: 192

約数和(自身を含む): 961813440

約数和(自身を除く): 641003720

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 14, 17, 20, 22, 28, 34, 35, 40, 44, 55, 56, 68, 70, 77, 85, 88, 110, 119, 121, 136, 140, 154, 170, 187, 220, 238, 242, 280, 308, 340, 374, 385, 440, 476, 484, 557, 595, 605, 616, 680, 748, 770, 847, 935, 952, 968, 1114, 1190, 1210, 1309, 1496, 1540, 1694, 1870, 2057, 2228, 2380, 2420, 2618, 2785, 3080, 3388, 3740, 3899, 4114, 4235, 4456, 4760, 4840, 5236, 5570, 6127, 6545, 6776, 7480, 7798, 8228, 8470, 9469, 10285, 10472, 11140, 12254, 13090, 14399, 15596, 16456, 16940, 18938, 19495, 20570, 22280, 24508, 26180, 28798, 30635, 31192, 33880, 37876, 38990, 41140, 42889, 47345, 49016, 52360, 57596, 61270, 66283, 67397, 71995, 75752, 77980, 82280, 85778, 94690, 104159, 115192, 122540, 132566, 134794, 143990, 155960, 171556, 189380, 208318, 214445, 245080, 265132, 269588, 287980, 331415, 336985, 343112, 378760, 416636, 428890, 471779, 520795, 530264, 539176, 575960, 662830, 673970, 729113, 833272, 857780, 943558, 1041590, 1145749, 1325660, 1347940, 1458226, 1715560, 1887116, 2083180, 2291498, 2358895, 2651320, 2695880, 2916452, 3645565, 3774232, 4166360, 4582996, 4717790, 5728745, 5832904, 7291130, 8020243, 9165992, 9435580, 11457490, 14582260, 16040486, 18871160, 22914980, 29164520, 32080972, 40101215, 45829960, 64161944, 80202430, 160404860, 320809720]

約数ペア:

[(1, 320809720), (2, 160404860), (4, 80202430), (5, 64161944), (7, 45829960), (8, 40101215), (10, 32080972), (11, 29164520), (14, 22914980), (17, 18871160), (20, 16040486), (22, 14582260), (28, 11457490), (34, 9435580), (35, 9165992), (40, 8020243), (44, 7291130), (55, 5832904), (56, 5728745), (68, 4717790), (70, 4582996), (77, 4166360), (85, 3774232), (88, 3645565), (110, 2916452), (119, 2695880), (121, 2651320), (136, 2358895), (140, 2291498), (154, 2083180), (170, 1887116), (187, 1715560), (220, 1458226), (238, 1347940), (242, 1325660), (280, 1145749), (308, 1041590), (340, 943558), (374, 857780), (385, 833272), (440, 729113), (476, 673970), (484, 662830), (557, 575960), (595, 539176), (605, 530264), (616, 520795), (680, 471779), (748, 428890), (770, 416636), (847, 378760), (935, 343112), (952, 336985), (968, 331415), (1114, 287980), (1190, 269588), (1210, 265132), (1309, 245080), (1496, 214445), (1540, 208318), (1694, 189380), (1870, 171556), (2057, 155960), (2228, 143990), (2380, 134794), (2420, 132566), (2618, 122540), (2785, 115192), (3080, 104159), (3388, 94690), (3740, 85778), (3899, 82280), (4114, 77980), (4235, 75752), (4456, 71995), (4760, 67397), (4840, 66283), (5236, 61270), (5570, 57596), (6127, 52360), (6545, 49016), (6776, 47345), (7480, 42889), (7798, 41140), (8228, 38990), (8470, 37876), (9469, 33880), (10285, 31192), (10472, 30635), (11140, 28798), (12254, 26180), (13090, 24508), (14399, 22280), (15596, 20570), (16456, 19495), (16940, 18938)]