81874705

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{1667}}^1$

素因数の和:1749

約数の個数: 32

約数和(自身を含む): 115292160

約数和(自身を除く): 33417455

約数列:

[1, 5, 11, 19, 47, 55, 95, 209, 235, 517, 893, 1045, 1667, 2585, 4465, 8335, 9823, 18337, 31673, 49115, 78349, 91685, 158365, 348403, 391745, 861839, 1488631, 1742015, 4309195, 7443155, 16374941, 81874705]

約数ペア:

[(1, 81874705), (5, 16374941), (11, 7443155), (19, 4309195), (47, 1742015), (55, 1488631), (95, 861839), (209, 391745), (235, 348403), (517, 158365), (893, 91685), (1045, 78349), (1667, 49115), (2585, 31673), (4465, 18337), (8335, 9823)]