19838875

素因数分解:

$5^3\times 7^2\times {\mathrm{41}}^1\times {\mathrm{79}}^1$

素因数の和:149

約数の個数: 48

約数和(自身を含む): 29877120

約数和(自身を除く): 10038245

約数列:

[1, 5, 7, 25, 35, 41, 49, 79, 125, 175, 205, 245, 287, 395, 553, 875, 1025, 1225, 1435, 1975, 2009, 2765, 3239, 3871, 5125, 6125, 7175, 9875, 10045, 13825, 16195, 19355, 22673, 35875, 50225, 69125, 80975, 96775, 113365, 158711, 251125, 404875, 483875, 566825, 793555, 2834125, 3967775, 19838875]

約数ペア:

[(1, 19838875), (5, 3967775), (7, 2834125), (25, 793555), (35, 566825), (41, 483875), (49, 404875), (79, 251125), (125, 158711), (175, 113365), (205, 96775), (245, 80975), (287, 69125), (395, 50225), (553, 35875), (875, 22673), (1025, 19355), (1225, 16195), (1435, 13825), (1975, 10045), (2009, 9875), (2765, 7175), (3239, 6125), (3871, 5125)]