30707880

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{139}}^1\times {\mathrm{263}}^1$

素因数の和:423

約数の個数: 128

約数和(自身を含む): 106444800

約数和(自身を除く): 75736920

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 70, 84, 105, 120, 139, 140, 168, 210, 263, 278, 280, 417, 420, 526, 556, 695, 789, 834, 840, 973, 1052, 1112, 1315, 1390, 1578, 1668, 1841, 1946, 2085, 2104, 2630, 2780, 2919, 3156, 3336, 3682, 3892, 3945, 4170, 4865, 5260, 5523, 5560, 5838, 6312, 7364, 7784, 7890, 8340, 9205, 9730, 10520, 11046, 11676, 14595, 14728, 15780, 16680, 18410, 19460, 22092, 23352, 27615, 29190, 31560, 36557, 36820, 38920, 44184, 55230, 58380, 73114, 73640, 109671, 110460, 116760, 146228, 182785, 219342, 220920, 255899, 292456, 365570, 438684, 511798, 548355, 731140, 767697, 877368, 1023596, 1096710, 1279495, 1462280, 1535394, 2047192, 2193420, 2558990, 3070788, 3838485, 4386840, 5117980, 6141576, 7676970, 10235960, 15353940, 30707880]

約数ペア:

[(1, 30707880), (2, 15353940), (3, 10235960), (4, 7676970), (5, 6141576), (6, 5117980), (7, 4386840), (8, 3838485), (10, 3070788), (12, 2558990), (14, 2193420), (15, 2047192), (20, 1535394), (21, 1462280), (24, 1279495), (28, 1096710), (30, 1023596), (35, 877368), (40, 767697), (42, 731140), (56, 548355), (60, 511798), (70, 438684), (84, 365570), (105, 292456), (120, 255899), (139, 220920), (140, 219342), (168, 182785), (210, 146228), (263, 116760), (278, 110460), (280, 109671), (417, 73640), (420, 73114), (526, 58380), (556, 55230), (695, 44184), (789, 38920), (834, 36820), (840, 36557), (973, 31560), (1052, 29190), (1112, 27615), (1315, 23352), (1390, 22092), (1578, 19460), (1668, 18410), (1841, 16680), (1946, 15780), (2085, 14728), (2104, 14595), (2630, 11676), (2780, 11046), (2919, 10520), (3156, 9730), (3336, 9205), (3682, 8340), (3892, 7890), (3945, 7784), (4170, 7364), (4865, 6312), (5260, 5838), (5523, 5560)]