20005568760

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{257}}^1\times {\mathrm{648689}}^1$

素因数の和:648960

約数の個数: 64

約数和(自身を含む): 60250327200

約数和(自身を除く): 40244758440

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 257, 514, 771, 1028, 1285, 1542, 2056, 2570, 3084, 3855, 5140, 6168, 7710, 10280, 15420, 30840, 648689, 1297378, 1946067, 2594756, 3243445, 3892134, 5189512, 6486890, 7784268, 9730335, 12973780, 15568536, 19460670, 25947560, 38921340, 77842680, 166713073, 333426146, 500139219, 666852292, 833565365, 1000278438, 1333704584, 1667130730, 2000556876, 2500696095, 3334261460, 4001113752, 5001392190, 6668522920, 10002784380, 20005568760]

約数ペア:

[(1, 20005568760), (2, 10002784380), (3, 6668522920), (4, 5001392190), (5, 4001113752), (6, 3334261460), (8, 2500696095), (10, 2000556876), (12, 1667130730), (15, 1333704584), (20, 1000278438), (24, 833565365), (30, 666852292), (40, 500139219), (60, 333426146), (120, 166713073), (257, 77842680), (514, 38921340), (771, 25947560), (1028, 19460670), (1285, 15568536), (1542, 12973780), (2056, 9730335), (2570, 7784268), (3084, 6486890), (3855, 5189512), (5140, 3892134), (6168, 3243445), (7710, 2594756), (10280, 1946067), (15420, 1297378), (30840, 648689)]