222320

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{397}}^1$

素因数の和:417

約数の個数: 40

約数和(自身を含む): 592224

約数和(自身を除く): 369904

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 397, 560, 794, 1588, 1985, 2779, 3176, 3970, 5558, 6352, 7940, 11116, 13895, 15880, 22232, 27790, 31760, 44464, 55580, 111160, 222320]

約数ペア:

[(1, 222320), (2, 111160), (4, 55580), (5, 44464), (7, 31760), (8, 27790), (10, 22232), (14, 15880), (16, 13895), (20, 11116), (28, 7940), (35, 6352), (40, 5558), (56, 3970), (70, 3176), (80, 2779), (112, 1985), (140, 1588), (280, 794), (397, 560)]