640893344

素因数分解:

$2^5\times 7^2\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{1367}}^1$

素因数の和:1427

約数の個数: 144

約数和(自身を含む): 1650595968

約数和(自身を除く): 1009702624

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 23, 26, 28, 32, 46, 49, 52, 56, 91, 92, 98, 104, 112, 161, 182, 184, 196, 208, 224, 299, 322, 364, 368, 392, 416, 598, 637, 644, 728, 736, 784, 1127, 1196, 1274, 1288, 1367, 1456, 1568, 2093, 2254, 2392, 2548, 2576, 2734, 2912, 4186, 4508, 4784, 5096, 5152, 5468, 8372, 9016, 9568, 9569, 10192, 10936, 14651, 16744, 17771, 18032, 19138, 20384, 21872, 29302, 31441, 33488, 35542, 36064, 38276, 43744, 58604, 62882, 66976, 66983, 71084, 76552, 117208, 124397, 125764, 133966, 142168, 153104, 220087, 234416, 248794, 251528, 267932, 284336, 306208, 408733, 440174, 468832, 497588, 503056, 535864, 568672, 817466, 870779, 880348, 995176, 1006112, 1071728, 1540609, 1634932, 1741558, 1760696, 1990352, 2143456, 2861131, 3081218, 3269864, 3483116, 3521392, 3980704, 5722262, 6162436, 6539728, 6966232, 7042784, 11444524, 12324872, 13079456, 13932464, 20027917, 22889048, 24649744, 27864928, 40055834, 45778096, 49299488, 80111668, 91556192, 160223336, 320446672, 640893344]

約数ペア:

[(1, 640893344), (2, 320446672), (4, 160223336), (7, 91556192), (8, 80111668), (13, 49299488), (14, 45778096), (16, 40055834), (23, 27864928), (26, 24649744), (28, 22889048), (32, 20027917), (46, 13932464), (49, 13079456), (52, 12324872), (56, 11444524), (91, 7042784), (92, 6966232), (98, 6539728), (104, 6162436), (112, 5722262), (161, 3980704), (182, 3521392), (184, 3483116), (196, 3269864), (208, 3081218), (224, 2861131), (299, 2143456), (322, 1990352), (364, 1760696), (368, 1741558), (392, 1634932), (416, 1540609), (598, 1071728), (637, 1006112), (644, 995176), (728, 880348), (736, 870779), (784, 817466), (1127, 568672), (1196, 535864), (1274, 503056), (1288, 497588), (1367, 468832), (1456, 440174), (1568, 408733), (2093, 306208), (2254, 284336), (2392, 267932), (2548, 251528), (2576, 248794), (2734, 234416), (2912, 220087), (4186, 153104), (4508, 142168), (4784, 133966), (5096, 125764), (5152, 124397), (5468, 117208), (8372, 76552), (9016, 71084), (9568, 66983), (9569, 66976), (10192, 62882), (10936, 58604), (14651, 43744), (16744, 38276), (17771, 36064), (18032, 35542), (19138, 33488), (20384, 31441), (21872, 29302)]