17404840

素因数分解:

$2^3\times 5^1\times {\mathrm{89}}^1\times {\mathrm{4889}}^1$

素因数の和:4989

約数の個数: 32

約数和(自身を含む): 39609000

約数和(自身を除く): 22204160

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 89, 178, 356, 445, 712, 890, 1780, 3560, 4889, 9778, 19556, 24445, 39112, 48890, 97780, 195560, 435121, 870242, 1740484, 2175605, 3480968, 4351210, 8702420, 17404840]

約数ペア:

[(1, 17404840), (2, 8702420), (4, 4351210), (5, 3480968), (8, 2175605), (10, 1740484), (20, 870242), (40, 435121), (89, 195560), (178, 97780), (356, 48890), (445, 39112), (712, 24445), (890, 19556), (1780, 9778), (3560, 4889)]