661379328

素因数分解:

$2^8\times 3^2\times {\mathrm{287057}}^1$

素因数の和:287079

約数の個数: 54

約数和(自身を含む): 1906926294

約数和(自身を除く): 1245546966

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 32, 36, 48, 64, 72, 96, 128, 144, 192, 256, 288, 384, 576, 768, 1152, 2304, 287057, 574114, 861171, 1148228, 1722342, 2296456, 2583513, 3444684, 4592912, 5167026, 6889368, 9185824, 10334052, 13778736, 18371648, 20668104, 27557472, 36743296, 41336208, 55114944, 73486592, 82672416, 110229888, 165344832, 220459776, 330689664, 661379328]

約数ペア:

[(1, 661379328), (2, 330689664), (3, 220459776), (4, 165344832), (6, 110229888), (8, 82672416), (9, 73486592), (12, 55114944), (16, 41336208), (18, 36743296), (24, 27557472), (32, 20668104), (36, 18371648), (48, 13778736), (64, 10334052), (72, 9185824), (96, 6889368), (128, 5167026), (144, 4592912), (192, 3444684), (256, 2583513), (288, 2296456), (384, 1722342), (576, 1148228), (768, 861171), (1152, 574114), (2304, 287057)]