7971458460

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{18979663}}^1$

素因数の和:18979682

約数の個数: 48

約数和(自身を含む): 25508668416

約数和(自身を除く): 17537209956

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420, 18979663, 37959326, 56938989, 75918652, 94898315, 113877978, 132857641, 189796630, 227755956, 265715282, 284694945, 379593260, 398572923, 531430564, 569389890, 664288205, 797145846, 1138779780, 1328576410, 1594291692, 1992864615, 2657152820, 3985729230, 7971458460]

約数ペア:

[(1, 7971458460), (2, 3985729230), (3, 2657152820), (4, 1992864615), (5, 1594291692), (6, 1328576410), (7, 1138779780), (10, 797145846), (12, 664288205), (14, 569389890), (15, 531430564), (20, 398572923), (21, 379593260), (28, 284694945), (30, 265715282), (35, 227755956), (42, 189796630), (60, 132857641), (70, 113877978), (84, 94898315), (105, 75918652), (140, 56938989), (210, 37959326), (420, 18979663)]