268658840

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{109}}^1\times {\mathrm{1433}}^1$

素因数の和:1596

約数の個数: 64

約数和(自身を含む): 624650400

約数和(自身を除く): 355991560

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 109, 172, 215, 218, 344, 430, 436, 545, 860, 872, 1090, 1433, 1720, 2180, 2866, 4360, 4687, 5732, 7165, 9374, 11464, 14330, 18748, 23435, 28660, 37496, 46870, 57320, 61619, 93740, 123238, 156197, 187480, 246476, 308095, 312394, 492952, 616190, 624788, 780985, 1232380, 1249576, 1561970, 2464760, 3123940, 6247880, 6716471, 13432942, 26865884, 33582355, 53731768, 67164710, 134329420, 268658840]

約数ペア:

[(1, 268658840), (2, 134329420), (4, 67164710), (5, 53731768), (8, 33582355), (10, 26865884), (20, 13432942), (40, 6716471), (43, 6247880), (86, 3123940), (109, 2464760), (172, 1561970), (215, 1249576), (218, 1232380), (344, 780985), (430, 624788), (436, 616190), (545, 492952), (860, 312394), (872, 308095), (1090, 246476), (1433, 187480), (1720, 156197), (2180, 123238), (2866, 93740), (4360, 61619), (4687, 57320), (5732, 46870), (7165, 37496), (9374, 28660), (11464, 23435), (14330, 18748)]