90463880

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{173969}}^1$

素因数の和:173993

約数の個数: 32

約数和(自身を含む): 219202200

約数和(自身を除く): 128738320

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 173969, 347938, 695876, 869845, 1391752, 1739690, 2261597, 3479380, 4523194, 6958760, 9046388, 11307985, 18092776, 22615970, 45231940, 90463880]

約数ペア:

[(1, 90463880), (2, 45231940), (4, 22615970), (5, 18092776), (8, 11307985), (10, 9046388), (13, 6958760), (20, 4523194), (26, 3479380), (40, 2261597), (52, 1739690), (65, 1391752), (104, 869845), (130, 695876), (260, 347938), (520, 173969)]