85780760

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{164963}}^1$

素因数の和:164987

約数の個数: 32

約数和(自身を含む): 207854640

約数和(自身を除く): 122073880

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 164963, 329926, 659852, 824815, 1319704, 1649630, 2144519, 3299260, 4289038, 6598520, 8578076, 10722595, 17156152, 21445190, 42890380, 85780760]

約数ペア:

[(1, 85780760), (2, 42890380), (4, 21445190), (5, 17156152), (8, 10722595), (10, 8578076), (13, 6598520), (20, 4289038), (26, 3299260), (40, 2144519), (52, 1649630), (65, 1319704), (104, 824815), (130, 659852), (260, 329926), (520, 164963)]