207788240

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{389}}^1\times {\mathrm{607}}^1$

素因数の和:1020

約数の個数: 80

約数和(自身を含む): 529251840

約数和(自身を除く): 321463600

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 110, 176, 220, 389, 440, 607, 778, 880, 1214, 1556, 1945, 2428, 3035, 3112, 3890, 4279, 4856, 6070, 6224, 6677, 7780, 8558, 9712, 12140, 13354, 15560, 17116, 21395, 24280, 26708, 31120, 33385, 34232, 42790, 48560, 53416, 66770, 68464, 85580, 106832, 133540, 171160, 236123, 267080, 342320, 472246, 534160, 944492, 1180615, 1888984, 2361230, 2597353, 3777968, 4722460, 5194706, 9444920, 10389412, 12986765, 18889840, 20778824, 25973530, 41557648, 51947060, 103894120, 207788240]

約数ペア:

[(1, 207788240), (2, 103894120), (4, 51947060), (5, 41557648), (8, 25973530), (10, 20778824), (11, 18889840), (16, 12986765), (20, 10389412), (22, 9444920), (40, 5194706), (44, 4722460), (55, 3777968), (80, 2597353), (88, 2361230), (110, 1888984), (176, 1180615), (220, 944492), (389, 534160), (440, 472246), (607, 342320), (778, 267080), (880, 236123), (1214, 171160), (1556, 133540), (1945, 106832), (2428, 85580), (3035, 68464), (3112, 66770), (3890, 53416), (4279, 48560), (4856, 42790), (6070, 34232), (6224, 33385), (6677, 31120), (7780, 26708), (8558, 24280), (9712, 21395), (12140, 17116), (13354, 15560)]