78481480

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{83}}^1\times {\mathrm{307}}^1$

素因数の和:419

約数の個数: 128

約数和(自身を含む): 223534080

約数和(自身を除く): 145052600

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 14, 20, 22, 28, 35, 40, 44, 55, 56, 70, 77, 83, 88, 110, 140, 154, 166, 220, 280, 307, 308, 332, 385, 415, 440, 581, 614, 616, 664, 770, 830, 913, 1162, 1228, 1535, 1540, 1660, 1826, 2149, 2324, 2456, 2905, 3070, 3080, 3320, 3377, 3652, 4298, 4565, 4648, 5810, 6140, 6391, 6754, 7304, 8596, 9130, 10745, 11620, 12280, 12782, 13508, 16885, 17192, 18260, 21490, 23240, 23639, 25481, 25564, 27016, 31955, 33770, 36520, 42980, 47278, 50962, 51128, 63910, 67540, 85960, 94556, 101924, 118195, 127405, 127820, 135080, 178367, 189112, 203848, 236390, 254810, 255640, 280291, 356734, 472780, 509620, 560582, 713468, 891835, 945560, 1019240, 1121164, 1401455, 1426936, 1783670, 1962037, 2242328, 2802910, 3567340, 3924074, 5605820, 7134680, 7848148, 9810185, 11211640, 15696296, 19620370, 39240740, 78481480]

約数ペア:

[(1, 78481480), (2, 39240740), (4, 19620370), (5, 15696296), (7, 11211640), (8, 9810185), (10, 7848148), (11, 7134680), (14, 5605820), (20, 3924074), (22, 3567340), (28, 2802910), (35, 2242328), (40, 1962037), (44, 1783670), (55, 1426936), (56, 1401455), (70, 1121164), (77, 1019240), (83, 945560), (88, 891835), (110, 713468), (140, 560582), (154, 509620), (166, 472780), (220, 356734), (280, 280291), (307, 255640), (308, 254810), (332, 236390), (385, 203848), (415, 189112), (440, 178367), (581, 135080), (614, 127820), (616, 127405), (664, 118195), (770, 101924), (830, 94556), (913, 85960), (1162, 67540), (1228, 63910), (1535, 51128), (1540, 50962), (1660, 47278), (1826, 42980), (2149, 36520), (2324, 33770), (2456, 31955), (2905, 27016), (3070, 25564), (3080, 25481), (3320, 23639), (3377, 23240), (3652, 21490), (4298, 18260), (4565, 17192), (4648, 16885), (5810, 13508), (6140, 12782), (6391, 12280), (6754, 11620), (7304, 10745), (8596, 9130)]