19932560

素因数分解:

$2^4\times 5^1\times {\mathrm{41}}^1\times {\mathrm{59}}^1\times {\mathrm{103}}^1$

素因数の和:216

約数の個数: 80

約数和(自身を含む): 48746880

約数和(自身を除く): 28814320

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 41, 59, 80, 82, 103, 118, 164, 205, 206, 236, 295, 328, 410, 412, 472, 515, 590, 656, 820, 824, 944, 1030, 1180, 1640, 1648, 2060, 2360, 2419, 3280, 4120, 4223, 4720, 4838, 6077, 8240, 8446, 9676, 12095, 12154, 16892, 19352, 21115, 24190, 24308, 30385, 33784, 38704, 42230, 48380, 48616, 60770, 67568, 84460, 96760, 97232, 121540, 168920, 193520, 243080, 249157, 337840, 486160, 498314, 996628, 1245785, 1993256, 2491570, 3986512, 4983140, 9966280, 19932560]

約数ペア:

[(1, 19932560), (2, 9966280), (4, 4983140), (5, 3986512), (8, 2491570), (10, 1993256), (16, 1245785), (20, 996628), (40, 498314), (41, 486160), (59, 337840), (80, 249157), (82, 243080), (103, 193520), (118, 168920), (164, 121540), (205, 97232), (206, 96760), (236, 84460), (295, 67568), (328, 60770), (410, 48616), (412, 48380), (472, 42230), (515, 38704), (590, 33784), (656, 30385), (820, 24308), (824, 24190), (944, 21115), (1030, 19352), (1180, 16892), (1640, 12154), (1648, 12095), (2060, 9676), (2360, 8446), (2419, 8240), (3280, 6077), (4120, 4838), (4223, 4720)]