638532544

素因数分解:

$2^6\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{1303}}^1$

素因数の和:1378

約数の個数: 112

約数和(自身を含む): 1483847680

約数和(自身を除く): 845315136

約数列:

[1, 2, 4, 8, 13, 16, 19, 26, 31, 32, 38, 52, 62, 64, 76, 104, 124, 152, 208, 247, 248, 304, 403, 416, 494, 496, 589, 608, 806, 832, 988, 992, 1178, 1216, 1303, 1612, 1976, 1984, 2356, 2606, 3224, 3952, 4712, 5212, 6448, 7657, 7904, 9424, 10424, 12896, 15314, 15808, 16939, 18848, 20848, 24757, 25792, 30628, 33878, 37696, 40393, 41696, 49514, 61256, 67756, 80786, 83392, 99028, 122512, 135512, 161572, 198056, 245024, 271024, 321841, 323144, 396112, 490048, 525109, 542048, 643682, 646288, 767467, 792224, 1050218, 1084096, 1287364, 1292576, 1534934, 1584448, 2100436, 2574728, 2585152, 3069868, 4200872, 5149456, 6139736, 8401744, 9977071, 10298912, 12279472, 16803488, 19954142, 20597824, 24558944, 33606976, 39908284, 49117888, 79816568, 159633136, 319266272, 638532544]

約数ペア:

[(1, 638532544), (2, 319266272), (4, 159633136), (8, 79816568), (13, 49117888), (16, 39908284), (19, 33606976), (26, 24558944), (31, 20597824), (32, 19954142), (38, 16803488), (52, 12279472), (62, 10298912), (64, 9977071), (76, 8401744), (104, 6139736), (124, 5149456), (152, 4200872), (208, 3069868), (247, 2585152), (248, 2574728), (304, 2100436), (403, 1584448), (416, 1534934), (494, 1292576), (496, 1287364), (589, 1084096), (608, 1050218), (806, 792224), (832, 767467), (988, 646288), (992, 643682), (1178, 542048), (1216, 525109), (1303, 490048), (1612, 396112), (1976, 323144), (1984, 321841), (2356, 271024), (2606, 245024), (3224, 198056), (3952, 161572), (4712, 135512), (5212, 122512), (6448, 99028), (7657, 83392), (7904, 80786), (9424, 67756), (10424, 61256), (12896, 49514), (15314, 41696), (15808, 40393), (16939, 37696), (18848, 33878), (20848, 30628), (24757, 25792)]