19903600

素因数分解:

$2^4\times 5^2\times {\mathrm{17}}^1\times {\mathrm{2927}}^1$

素因数の和:2962

約数の個数: 60

約数和(自身を含む): 50648544

約数和(自身を除く): 30744944

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 25, 34, 40, 50, 68, 80, 85, 100, 136, 170, 200, 272, 340, 400, 425, 680, 850, 1360, 1700, 2927, 3400, 5854, 6800, 11708, 14635, 23416, 29270, 46832, 49759, 58540, 73175, 99518, 117080, 146350, 199036, 234160, 248795, 292700, 398072, 497590, 585400, 796144, 995180, 1170800, 1243975, 1990360, 2487950, 3980720, 4975900, 9951800, 19903600]

約数ペア:

[(1, 19903600), (2, 9951800), (4, 4975900), (5, 3980720), (8, 2487950), (10, 1990360), (16, 1243975), (17, 1170800), (20, 995180), (25, 796144), (34, 585400), (40, 497590), (50, 398072), (68, 292700), (80, 248795), (85, 234160), (100, 199036), (136, 146350), (170, 117080), (200, 99518), (272, 73175), (340, 58540), (400, 49759), (425, 46832), (680, 29270), (850, 23416), (1360, 14635), (1700, 11708), (2927, 6800), (3400, 5854)]