87831460

素因数分解:

$2^2\times 5^1\times {\mathrm{61}}^1\times {\mathrm{71993}}^1$

素因数の和:72063

約数の個数: 24

約数和(自身を含む): 187472376

約数和(自身を除く): 99640916

約数列:

[1, 2, 4, 5, 10, 20, 61, 122, 244, 305, 610, 1220, 71993, 143986, 287972, 359965, 719930, 1439860, 4391573, 8783146, 17566292, 21957865, 43915730, 87831460]

約数ペア:

[(1, 87831460), (2, 43915730), (4, 21957865), (5, 17566292), (10, 8783146), (20, 4391573), (61, 1439860), (122, 719930), (244, 359965), (305, 287972), (610, 143986), (1220, 71993)]