78308620

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{349}}^1\times {\mathrm{863}}^1$

素因数の和:1234

約数の個数: 48

約数和(自身を含む): 177811200

約数和(自身を除く): 99502580

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 349, 698, 863, 1396, 1726, 1745, 3452, 3490, 4315, 4537, 6980, 8630, 9074, 11219, 17260, 18148, 22438, 22685, 44876, 45370, 56095, 90740, 112190, 224380, 301187, 602374, 1204748, 1505935, 3011870, 3915431, 6023740, 7830862, 15661724, 19577155, 39154310, 78308620]

約数ペア:

[(1, 78308620), (2, 39154310), (4, 19577155), (5, 15661724), (10, 7830862), (13, 6023740), (20, 3915431), (26, 3011870), (52, 1505935), (65, 1204748), (130, 602374), (260, 301187), (349, 224380), (698, 112190), (863, 90740), (1396, 56095), (1726, 45370), (1745, 44876), (3452, 22685), (3490, 22438), (4315, 18148), (4537, 17260), (6980, 11219), (8630, 9074)]