128897240

素因数分解:

$2^3\times 5^1\times {\mathrm{1373}}^1\times {\mathrm{2347}}^1$

素因数の和:3731

約数の個数: 32

約数和(自身を含む): 290353680

約数和(自身を除く): 161456440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1373, 2347, 2746, 4694, 5492, 6865, 9388, 10984, 11735, 13730, 18776, 23470, 27460, 46940, 54920, 93880, 3222431, 6444862, 12889724, 16112155, 25779448, 32224310, 64448620, 128897240]

約数ペア:

[(1, 128897240), (2, 64448620), (4, 32224310), (5, 25779448), (8, 16112155), (10, 12889724), (20, 6444862), (40, 3222431), (1373, 93880), (2347, 54920), (2746, 46940), (4694, 27460), (5492, 23470), (6865, 18776), (9388, 13730), (10984, 11735)]