81217860

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{701}}^1\times {\mathrm{1931}}^1$

素因数の和:2644

約数の個数: 48

約数和(自身を含む): 227852352

約数和(自身を除く): 146634492

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 701, 1402, 1931, 2103, 2804, 3505, 3862, 4206, 5793, 7010, 7724, 8412, 9655, 10515, 11586, 14020, 19310, 21030, 23172, 28965, 38620, 42060, 57930, 115860, 1353631, 2707262, 4060893, 5414524, 6768155, 8121786, 13536310, 16243572, 20304465, 27072620, 40608930, 81217860]

約数ペア:

[(1, 81217860), (2, 40608930), (3, 27072620), (4, 20304465), (5, 16243572), (6, 13536310), (10, 8121786), (12, 6768155), (15, 5414524), (20, 4060893), (30, 2707262), (60, 1353631), (701, 115860), (1402, 57930), (1931, 42060), (2103, 38620), (2804, 28965), (3505, 23172), (3862, 21030), (4206, 19310), (5793, 14020), (7010, 11586), (7724, 10515), (8412, 9655)]