678659620

素因数分解:

$2^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{239}}^1\times {\mathrm{6173}}^1$

素因数の和:6444

約数の個数: 48

約数和(自身を含む): 1493614080

約数和(自身を除く): 814954460

約数列:

[1, 2, 4, 5, 10, 20, 23, 46, 92, 115, 230, 239, 460, 478, 956, 1195, 2390, 4780, 5497, 6173, 10994, 12346, 21988, 24692, 27485, 30865, 54970, 61730, 109940, 123460, 141979, 283958, 567916, 709895, 1419790, 1475347, 2839580, 2950694, 5901388, 7376735, 14753470, 29506940, 33932981, 67865962, 135731924, 169664905, 339329810, 678659620]

約数ペア:

[(1, 678659620), (2, 339329810), (4, 169664905), (5, 135731924), (10, 67865962), (20, 33932981), (23, 29506940), (46, 14753470), (92, 7376735), (115, 5901388), (230, 2950694), (239, 2839580), (460, 1475347), (478, 1419790), (956, 709895), (1195, 567916), (2390, 283958), (4780, 141979), (5497, 123460), (6173, 109940), (10994, 61730), (12346, 54970), (21988, 30865), (24692, 27485)]