1388702920

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{683}}^1\times {\mathrm{4621}}^1$

素因数の和:5326

約数の個数: 64

約数和(自身を含む): 3414363840

約数和(自身を除く): 2025660920

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 683, 1366, 2732, 3415, 4621, 5464, 6830, 7513, 9242, 13660, 15026, 18484, 23105, 27320, 30052, 36968, 37565, 46210, 50831, 60104, 75130, 92420, 101662, 150260, 184840, 203324, 254155, 300520, 406648, 508310, 1016620, 2033240, 3156143, 6312286, 12624572, 15780715, 25249144, 31561430, 34717573, 63122860, 69435146, 126245720, 138870292, 173587865, 277740584, 347175730, 694351460, 1388702920]

約数ペア:

[(1, 1388702920), (2, 694351460), (4, 347175730), (5, 277740584), (8, 173587865), (10, 138870292), (11, 126245720), (20, 69435146), (22, 63122860), (40, 34717573), (44, 31561430), (55, 25249144), (88, 15780715), (110, 12624572), (220, 6312286), (440, 3156143), (683, 2033240), (1366, 1016620), (2732, 508310), (3415, 406648), (4621, 300520), (5464, 254155), (6830, 203324), (7513, 184840), (9242, 150260), (13660, 101662), (15026, 92420), (18484, 75130), (23105, 60104), (27320, 50831), (30052, 46210), (36968, 37565)]