87723180

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{79}}^1\times {\mathrm{199}}^1$

素因数の和:324

約数の個数: 144

約数和(自身を含む): 279552000

約数和(自身を除く): 191828820

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 31, 36, 45, 60, 62, 79, 90, 93, 124, 155, 158, 180, 186, 199, 237, 279, 310, 316, 372, 395, 398, 465, 474, 558, 597, 620, 711, 790, 796, 930, 948, 995, 1116, 1185, 1194, 1395, 1422, 1580, 1791, 1860, 1990, 2370, 2388, 2449, 2790, 2844, 2985, 3555, 3582, 3980, 4740, 4898, 5580, 5970, 6169, 7110, 7164, 7347, 8955, 9796, 11940, 12245, 12338, 14220, 14694, 15721, 17910, 18507, 22041, 24490, 24676, 29388, 30845, 31442, 35820, 36735, 37014, 44082, 47163, 48980, 55521, 61690, 62884, 73470, 74028, 78605, 88164, 92535, 94326, 110205, 111042, 123380, 141489, 146940, 157210, 185070, 188652, 220410, 222084, 235815, 277605, 282978, 314420, 370140, 440820, 471630, 487351, 555210, 565956, 707445, 943260, 974702, 1110420, 1414890, 1462053, 1949404, 2436755, 2829780, 2924106, 4386159, 4873510, 5848212, 7310265, 8772318, 9747020, 14620530, 17544636, 21930795, 29241060, 43861590, 87723180]

約数ペア:

[(1, 87723180), (2, 43861590), (3, 29241060), (4, 21930795), (5, 17544636), (6, 14620530), (9, 9747020), (10, 8772318), (12, 7310265), (15, 5848212), (18, 4873510), (20, 4386159), (30, 2924106), (31, 2829780), (36, 2436755), (45, 1949404), (60, 1462053), (62, 1414890), (79, 1110420), (90, 974702), (93, 943260), (124, 707445), (155, 565956), (158, 555210), (180, 487351), (186, 471630), (199, 440820), (237, 370140), (279, 314420), (310, 282978), (316, 277605), (372, 235815), (395, 222084), (398, 220410), (465, 188652), (474, 185070), (558, 157210), (597, 146940), (620, 141489), (711, 123380), (790, 111042), (796, 110205), (930, 94326), (948, 92535), (995, 88164), (1116, 78605), (1185, 74028), (1194, 73470), (1395, 62884), (1422, 61690), (1580, 55521), (1791, 48980), (1860, 47163), (1990, 44082), (2370, 37014), (2388, 36735), (2449, 35820), (2790, 31442), (2844, 30845), (2985, 29388), (3555, 24676), (3582, 24490), (3980, 22041), (4740, 18507), (4898, 17910), (5580, 15721), (5970, 14694), (6169, 14220), (7110, 12338), (7164, 12245), (7347, 11940), (8955, 9796)]