201220480

素因数分解:

$2^7\times 5^1\times {\mathrm{314407}}^1$

素因数の和:314426

約数の個数: 32

約数和(自身を含む): 481044240

約数和(自身を除く): 279823760

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 314407, 628814, 1257628, 1572035, 2515256, 3144070, 5030512, 6288140, 10061024, 12576280, 20122048, 25152560, 40244096, 50305120, 100610240, 201220480]

約数ペア:

[(1, 201220480), (2, 100610240), (4, 50305120), (5, 40244096), (8, 25152560), (10, 20122048), (16, 12576280), (20, 10061024), (32, 6288140), (40, 5030512), (64, 3144070), (80, 2515256), (128, 1572035), (160, 1257628), (320, 628814), (640, 314407)]