333440

素因数分解:

$2^7\times 5^1\times {\mathrm{521}}^1$

素因数の和:540

約数の個数: 32

約数和(自身を含む): 798660

約数和(自身を除く): 465220

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 521, 640, 1042, 2084, 2605, 4168, 5210, 8336, 10420, 16672, 20840, 33344, 41680, 66688, 83360, 166720, 333440]

約数ペア:

[(1, 333440), (2, 166720), (4, 83360), (5, 66688), (8, 41680), (10, 33344), (16, 20840), (20, 16672), (32, 10420), (40, 8336), (64, 5210), (80, 4168), (128, 2605), (160, 2084), (320, 1042), (521, 640)]