198860

素因数分解:

$2^2\times 5^1\times {\mathrm{61}}^1\times {\mathrm{163}}^1$

素因数の和:233

約数の個数: 24

約数和(自身を含む): 427056

約数和(自身を除く): 228196

約数列:

[1, 2, 4, 5, 10, 20, 61, 122, 163, 244, 305, 326, 610, 652, 815, 1220, 1630, 3260, 9943, 19886, 39772, 49715, 99430, 198860]

約数ペア:

[(1, 198860), (2, 99430), (4, 49715), (5, 39772), (10, 19886), (20, 9943), (61, 3260), (122, 1630), (163, 1220), (244, 815), (305, 652), (326, 610)]