80148400

素因数分解:

$2^4\times 5^2\times {\mathrm{200371}}^1$

素因数の和:200389

約数の個数: 30

約数和(自身を含む): 192557492

約数和(自身を除く): 112409092

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400, 200371, 400742, 801484, 1001855, 1602968, 2003710, 3205936, 4007420, 5009275, 8014840, 10018550, 16029680, 20037100, 40074200, 80148400]

約数ペア:

[(1, 80148400), (2, 40074200), (4, 20037100), (5, 16029680), (8, 10018550), (10, 8014840), (16, 5009275), (20, 4007420), (25, 3205936), (40, 2003710), (50, 1602968), (80, 1001855), (100, 801484), (200, 400742), (400, 200371)]