257242920

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{53}}^1\times {\mathrm{3677}}^1$

素因数の和:3755

約数の個数: 128

約数和(自身を含む): 858003840

約数和(自身を除く): 600760920

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 11, 12, 15, 20, 22, 24, 30, 33, 40, 44, 53, 55, 60, 66, 88, 106, 110, 120, 132, 159, 165, 212, 220, 264, 265, 318, 330, 424, 440, 530, 583, 636, 660, 795, 1060, 1166, 1272, 1320, 1590, 1749, 2120, 2332, 2915, 3180, 3498, 3677, 4664, 5830, 6360, 6996, 7354, 8745, 11031, 11660, 13992, 14708, 17490, 18385, 22062, 23320, 29416, 34980, 36770, 40447, 44124, 55155, 69960, 73540, 80894, 88248, 110310, 121341, 147080, 161788, 194881, 202235, 220620, 242682, 323576, 389762, 404470, 441240, 485364, 584643, 606705, 779524, 808940, 970728, 974405, 1169286, 1213410, 1559048, 1617880, 1948810, 2143691, 2338572, 2426820, 2923215, 3897620, 4287382, 4677144, 4853640, 5846430, 6431073, 7795240, 8574764, 10718455, 11692860, 12862146, 17149528, 21436910, 23385720, 25724292, 32155365, 42873820, 51448584, 64310730, 85747640, 128621460, 257242920]

約数ペア:

[(1, 257242920), (2, 128621460), (3, 85747640), (4, 64310730), (5, 51448584), (6, 42873820), (8, 32155365), (10, 25724292), (11, 23385720), (12, 21436910), (15, 17149528), (20, 12862146), (22, 11692860), (24, 10718455), (30, 8574764), (33, 7795240), (40, 6431073), (44, 5846430), (53, 4853640), (55, 4677144), (60, 4287382), (66, 3897620), (88, 2923215), (106, 2426820), (110, 2338572), (120, 2143691), (132, 1948810), (159, 1617880), (165, 1559048), (212, 1213410), (220, 1169286), (264, 974405), (265, 970728), (318, 808940), (330, 779524), (424, 606705), (440, 584643), (530, 485364), (583, 441240), (636, 404470), (660, 389762), (795, 323576), (1060, 242682), (1166, 220620), (1272, 202235), (1320, 194881), (1590, 161788), (1749, 147080), (2120, 121341), (2332, 110310), (2915, 88248), (3180, 80894), (3498, 73540), (3677, 69960), (4664, 55155), (5830, 44124), (6360, 40447), (6996, 36770), (7354, 34980), (8745, 29416), (11031, 23320), (11660, 22062), (13992, 18385), (14708, 17490)]