8708208220

素因数分解:

$2^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{139}}^1\times {\mathrm{44119}}^1$

素因数の和:44338

約数の個数: 48

約数和(自身を含む): 18678643200

約数和(自身を除く): 9970434980

約数列:

[1, 2, 4, 5, 10, 20, 71, 139, 142, 278, 284, 355, 556, 695, 710, 1390, 1420, 2780, 9869, 19738, 39476, 44119, 49345, 88238, 98690, 176476, 197380, 220595, 441190, 882380, 3132449, 6132541, 6264898, 12265082, 12529796, 15662245, 24530164, 30662705, 31324490, 61325410, 62648980, 122650820, 435410411, 870820822, 1741641644, 2177052055, 4354104110, 8708208220]

約数ペア:

[(1, 8708208220), (2, 4354104110), (4, 2177052055), (5, 1741641644), (10, 870820822), (20, 435410411), (71, 122650820), (139, 62648980), (142, 61325410), (278, 31324490), (284, 30662705), (355, 24530164), (556, 15662245), (695, 12529796), (710, 12265082), (1390, 6264898), (1420, 6132541), (2780, 3132449), (9869, 882380), (19738, 441190), (39476, 220595), (44119, 197380), (49345, 176476), (88238, 98690)]