7208980

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{311}}^1$

素因数の和:400

約数の個数: 48

約数和(自身を含む): 16248960

約数和(自身を除く): 9039980

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 61, 76, 95, 122, 190, 244, 305, 311, 380, 610, 622, 1159, 1220, 1244, 1555, 2318, 3110, 4636, 5795, 5909, 6220, 11590, 11818, 18971, 23180, 23636, 29545, 37942, 59090, 75884, 94855, 118180, 189710, 360449, 379420, 720898, 1441796, 1802245, 3604490, 7208980]

約数ペア:

[(1, 7208980), (2, 3604490), (4, 1802245), (5, 1441796), (10, 720898), (19, 379420), (20, 360449), (38, 189710), (61, 118180), (76, 94855), (95, 75884), (122, 59090), (190, 37942), (244, 29545), (305, 23636), (311, 23180), (380, 18971), (610, 11818), (622, 11590), (1159, 6220), (1220, 5909), (1244, 5795), (1555, 4636), (2318, 3110)]