639891560

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{11}}^3\times {\mathrm{17}}^1\times {\mathrm{101}}^1$

素因数の和:169

約数の個数: 256

約数和(自身を含む): 1935290880

約数和(自身を除く): 1295399320

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, 101, 110, 119, 121, 136, 140, 154, 170, 187, 202, 220, 238, 242, 280, 308, 340, 374, 385, 404, 440, 476, 484, 505, 595, 605, 616, 680, 707, 748, 770, 808, 847, 935, 952, 968, 1010, 1111, 1190, 1210, 1309, 1331, 1414, 1496, 1540, 1694, 1717, 1870, 2020, 2057, 2222, 2380, 2420, 2618, 2662, 2828, 3080, 3388, 3434, 3535, 3740, 4040, 4114, 4235, 4444, 4760, 4840, 5236, 5324, 5555, 5656, 6545, 6655, 6776, 6868, 7070, 7480, 7777, 8228, 8470, 8585, 8888, 9317, 10285, 10472, 10648, 11110, 12019, 12221, 13090, 13310, 13736, 14140, 14399, 15554, 16456, 16940, 17170, 18634, 18887, 20570, 22220, 22627, 24038, 24442, 26180, 26620, 28280, 28798, 31108, 33880, 34340, 37268, 37774, 38885, 41140, 44440, 45254, 46585, 48076, 48884, 52360, 53240, 57596, 60095, 61105, 62216, 68680, 71995, 74536, 75548, 77770, 82280, 85547, 90508, 93170, 94435, 96152, 97768, 113135, 115192, 120190, 122210, 132209, 134431, 143990, 151096, 155540, 158389, 171094, 181016, 186340, 188870, 207757, 226270, 240380, 244420, 264418, 268862, 287980, 311080, 316778, 342188, 372680, 377740, 415514, 427735, 452540, 480760, 488840, 528836, 537724, 575960, 633556, 661045, 672155, 684376, 755480, 791945, 831028, 855470, 905080, 941017, 1038785, 1057672, 1075448, 1267112, 1322090, 1344310, 1454299, 1583890, 1662056, 1710940, 1882034, 2077570, 2285327, 2644180, 2688620, 2908598, 3167780, 3421880, 3764068, 4155140, 4570654, 4705085, 5288360, 5377240, 5817196, 6335560, 7271495, 7528136, 8310280, 9141308, 9410170, 11426635, 11634392, 14542990, 15997289, 18282616, 18820340, 22853270, 29085980, 31994578, 37640680, 45706540, 58171960, 63989156, 79986445, 91413080, 127978312, 159972890, 319945780, 639891560]

約数ペア:

[(1, 639891560), (2, 319945780), (4, 159972890), (5, 127978312), (7, 91413080), (8, 79986445), (10, 63989156), (11, 58171960), (14, 45706540), (17, 37640680), (20, 31994578), (22, 29085980), (28, 22853270), (34, 18820340), (35, 18282616), (40, 15997289), (44, 14542990), (55, 11634392), (56, 11426635), (68, 9410170), (70, 9141308), (77, 8310280), (85, 7528136), (88, 7271495), (101, 6335560), (110, 5817196), (119, 5377240), (121, 5288360), (136, 4705085), (140, 4570654), (154, 4155140), (170, 3764068), (187, 3421880), (202, 3167780), (220, 2908598), (238, 2688620), (242, 2644180), (280, 2285327), (308, 2077570), (340, 1882034), (374, 1710940), (385, 1662056), (404, 1583890), (440, 1454299), (476, 1344310), (484, 1322090), (505, 1267112), (595, 1075448), (605, 1057672), (616, 1038785), (680, 941017), (707, 905080), (748, 855470), (770, 831028), (808, 791945), (847, 755480), (935, 684376), (952, 672155), (968, 661045), (1010, 633556), (1111, 575960), (1190, 537724), (1210, 528836), (1309, 488840), (1331, 480760), (1414, 452540), (1496, 427735), (1540, 415514), (1694, 377740), (1717, 372680), (1870, 342188), (2020, 316778), (2057, 311080), (2222, 287980), (2380, 268862), (2420, 264418), (2618, 244420), (2662, 240380), (2828, 226270), (3080, 207757), (3388, 188870), (3434, 186340), (3535, 181016), (3740, 171094), (4040, 158389), (4114, 155540), (4235, 151096), (4444, 143990), (4760, 134431), (4840, 132209), (5236, 122210), (5324, 120190), (5555, 115192), (5656, 113135), (6545, 97768), (6655, 96152), (6776, 94435), (6868, 93170), (7070, 90508), (7480, 85547), (7777, 82280), (8228, 77770), (8470, 75548), (8585, 74536), (8888, 71995), (9317, 68680), (10285, 62216), (10472, 61105), (10648, 60095), (11110, 57596), (12019, 53240), (12221, 52360), (13090, 48884), (13310, 48076), (13736, 46585), (14140, 45254), (14399, 44440), (15554, 41140), (16456, 38885), (16940, 37774), (17170, 37268), (18634, 34340), (18887, 33880), (20570, 31108), (22220, 28798), (22627, 28280), (24038, 26620), (24442, 26180)]