1777888032680

素因数分解:

$2^3\times 5^1\times {\mathrm{68909}}^1\times {\mathrm{645013}}^1$

素因数の和:713933

約数の個数: 32

約数和(自身を含む): 4000312326600

約数和(自身を除く): 2222424293920

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 68909, 137818, 275636, 344545, 551272, 645013, 689090, 1290026, 1378180, 2580052, 2756360, 3225065, 5160104, 6450130, 12900260, 25800520, 44447200817, 88894401634, 177788803268, 222236004085, 355577606536, 444472008170, 888944016340, 1777888032680]

約数ペア:

[(1, 1777888032680), (2, 888944016340), (4, 444472008170), (5, 355577606536), (8, 222236004085), (10, 177788803268), (20, 88894401634), (40, 44447200817), (68909, 25800520), (137818, 12900260), (275636, 6450130), (344545, 5160104), (551272, 3225065), (645013, 2756360), (689090, 2580052), (1290026, 1378180)]