217996680

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{239}}^1\times {\mathrm{691}}^1$

素因数の和:955

約数の個数: 128

約数和(自身を含む): 717465600

約数和(自身を除く): 499468920

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 11, 12, 15, 20, 22, 24, 30, 33, 40, 44, 55, 60, 66, 88, 110, 120, 132, 165, 220, 239, 264, 330, 440, 478, 660, 691, 717, 956, 1195, 1320, 1382, 1434, 1912, 2073, 2390, 2629, 2764, 2868, 3455, 3585, 4146, 4780, 5258, 5528, 5736, 6910, 7170, 7601, 7887, 8292, 9560, 10365, 10516, 13145, 13820, 14340, 15202, 15774, 16584, 20730, 21032, 22803, 26290, 27640, 28680, 30404, 31548, 38005, 39435, 41460, 45606, 52580, 60808, 63096, 76010, 78870, 82920, 91212, 105160, 114015, 152020, 157740, 165149, 182424, 228030, 304040, 315480, 330298, 456060, 495447, 660596, 825745, 912120, 990894, 1321192, 1651490, 1816639, 1981788, 2477235, 3302980, 3633278, 3963576, 4954470, 5449917, 6605960, 7266556, 9083195, 9908940, 10899834, 14533112, 18166390, 19817880, 21799668, 27249585, 36332780, 43599336, 54499170, 72665560, 108998340, 217996680]

約数ペア:

[(1, 217996680), (2, 108998340), (3, 72665560), (4, 54499170), (5, 43599336), (6, 36332780), (8, 27249585), (10, 21799668), (11, 19817880), (12, 18166390), (15, 14533112), (20, 10899834), (22, 9908940), (24, 9083195), (30, 7266556), (33, 6605960), (40, 5449917), (44, 4954470), (55, 3963576), (60, 3633278), (66, 3302980), (88, 2477235), (110, 1981788), (120, 1816639), (132, 1651490), (165, 1321192), (220, 990894), (239, 912120), (264, 825745), (330, 660596), (440, 495447), (478, 456060), (660, 330298), (691, 315480), (717, 304040), (956, 228030), (1195, 182424), (1320, 165149), (1382, 157740), (1434, 152020), (1912, 114015), (2073, 105160), (2390, 91212), (2629, 82920), (2764, 78870), (2868, 76010), (3455, 63096), (3585, 60808), (4146, 52580), (4780, 45606), (5258, 41460), (5528, 39435), (5736, 38005), (6910, 31548), (7170, 30404), (7601, 28680), (7887, 27640), (8292, 26290), (9560, 22803), (10365, 21032), (10516, 20730), (13145, 16584), (13820, 15774), (14340, 15202)]