320804900

素因数分解:

$2^2\times 5^2\times {\mathrm{13}}^1\times {\mathrm{246773}}^1$

素因数の和:246800

約数の個数: 36

約数和(自身を含む): 749699412

約数和(自身を除く): 428894512

約数列:

[1, 2, 4, 5, 10, 13, 20, 25, 26, 50, 52, 65, 100, 130, 260, 325, 650, 1300, 246773, 493546, 987092, 1233865, 2467730, 3208049, 4935460, 6169325, 6416098, 12338650, 12832196, 16040245, 24677300, 32080490, 64160980, 80201225, 160402450, 320804900]

約数ペア:

[(1, 320804900), (2, 160402450), (4, 80201225), (5, 64160980), (10, 32080490), (13, 24677300), (20, 16040245), (25, 12832196), (26, 12338650), (50, 6416098), (52, 6169325), (65, 4935460), (100, 3208049), (130, 2467730), (260, 1233865), (325, 987092), (650, 493546), (1300, 246773)]