68994220

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{257}}^1\times {\mathrm{433}}^1$

素因数の和:730

約数の個数: 48

約数和(自身を含む): 150490368

約数和(自身を除く): 81496148

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 257, 310, 433, 514, 620, 866, 1028, 1285, 1732, 2165, 2570, 4330, 5140, 7967, 8660, 13423, 15934, 26846, 31868, 39835, 53692, 67115, 79670, 111281, 134230, 159340, 222562, 268460, 445124, 556405, 1112810, 2225620, 3449711, 6899422, 13798844, 17248555, 34497110, 68994220]

約数ペア:

[(1, 68994220), (2, 34497110), (4, 17248555), (5, 13798844), (10, 6899422), (20, 3449711), (31, 2225620), (62, 1112810), (124, 556405), (155, 445124), (257, 268460), (310, 222562), (433, 159340), (514, 134230), (620, 111281), (866, 79670), (1028, 67115), (1285, 53692), (1732, 39835), (2165, 31868), (2570, 26846), (4330, 15934), (5140, 13423), (7967, 8660)]