218561680

素因数分解:

$2^4\times 5^1\times {\mathrm{2732021}}^1$

素因数の和:2732034

約数の個数: 20

約数和(自身を含む): 508156092

約数和(自身を除く): 289594412

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 2732021, 5464042, 10928084, 13660105, 21856168, 27320210, 43712336, 54640420, 109280840, 218561680]

約数ペア:

[(1, 218561680), (2, 109280840), (4, 54640420), (5, 43712336), (8, 27320210), (10, 21856168), (16, 13660105), (20, 10928084), (40, 5464042), (80, 2732021)]