7218195

素因数分解:

$3^1\times 5^1\times {\mathrm{19}}^2\times {\mathrm{31}}^1\times {\mathrm{43}}^1$

素因数の和:120

約数の個数: 48

約数和(自身を含む): 12874752

約数和(自身を除く): 5656557

約数列:

[1, 3, 5, 15, 19, 31, 43, 57, 93, 95, 129, 155, 215, 285, 361, 465, 589, 645, 817, 1083, 1333, 1767, 1805, 2451, 2945, 3999, 4085, 5415, 6665, 8835, 11191, 12255, 15523, 19995, 25327, 33573, 46569, 55955, 75981, 77615, 126635, 167865, 232845, 379905, 481213, 1443639, 2406065, 7218195]

約数ペア:

[(1, 7218195), (3, 2406065), (5, 1443639), (15, 481213), (19, 379905), (31, 232845), (43, 167865), (57, 126635), (93, 77615), (95, 75981), (129, 55955), (155, 46569), (215, 33573), (285, 25327), (361, 19995), (465, 15523), (589, 12255), (645, 11191), (817, 8835), (1083, 6665), (1333, 5415), (1767, 4085), (1805, 3999), (2451, 2945)]