221840

素因数分解:

$2^4\times 5^1\times {\mathrm{47}}^1\times {\mathrm{59}}^1$

素因数の和:119

約数の個数: 40

約数和(自身を含む): 535680

約数和(自身を除く): 313840

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 47, 59, 80, 94, 118, 188, 235, 236, 295, 376, 470, 472, 590, 752, 940, 944, 1180, 1880, 2360, 2773, 3760, 4720, 5546, 11092, 13865, 22184, 27730, 44368, 55460, 110920, 221840]

約数ペア:

[(1, 221840), (2, 110920), (4, 55460), (5, 44368), (8, 27730), (10, 22184), (16, 13865), (20, 11092), (40, 5546), (47, 4720), (59, 3760), (80, 2773), (94, 2360), (118, 1880), (188, 1180), (235, 944), (236, 940), (295, 752), (376, 590), (470, 472)]