78971320

素因数分解:

$2^3\times 5^1\times {\mathrm{37}}^1\times {\mathrm{53359}}^1$

素因数の和:53407

約数の個数: 32

約数和(自身を含む): 182491200

約数和(自身を除く): 103519880

約数列:

[1, 2, 4, 5, 8, 10, 20, 37, 40, 74, 148, 185, 296, 370, 740, 1480, 53359, 106718, 213436, 266795, 426872, 533590, 1067180, 1974283, 2134360, 3948566, 7897132, 9871415, 15794264, 19742830, 39485660, 78971320]

約数ペア:

[(1, 78971320), (2, 39485660), (4, 19742830), (5, 15794264), (8, 9871415), (10, 7897132), (20, 3948566), (37, 2134360), (40, 1974283), (74, 1067180), (148, 533590), (185, 426872), (296, 266795), (370, 213436), (740, 106718), (1480, 53359)]