173240

素因数分解:

$2^3\times 5^1\times {\mathrm{61}}^1\times {\mathrm{71}}^1$

素因数の和:143

約数の個数: 32

約数和(自身を含む): 401760

約数和(自身を除く): 228520

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 61, 71, 122, 142, 244, 284, 305, 355, 488, 568, 610, 710, 1220, 1420, 2440, 2840, 4331, 8662, 17324, 21655, 34648, 43310, 86620, 173240]

約数ペア:

[(1, 173240), (2, 86620), (4, 43310), (5, 34648), (8, 21655), (10, 17324), (20, 8662), (40, 4331), (61, 2840), (71, 2440), (122, 1420), (142, 1220), (244, 710), (284, 610), (305, 568), (355, 488)]