20158718325

素因数分解:

$3^1\times 5^2\times {\mathrm{19}}^2\times {\mathrm{37}}^1\times {\mathrm{20123}}^1$

素因数の和:20211

約数の個数: 72

約数和(自身を含む): 36128053728

約数和(自身を除く): 15969335403

約数列:

[1, 3, 5, 15, 19, 25, 37, 57, 75, 95, 111, 185, 285, 361, 475, 555, 703, 925, 1083, 1425, 1805, 2109, 2775, 3515, 5415, 9025, 10545, 13357, 17575, 20123, 27075, 40071, 52725, 60369, 66785, 100615, 200355, 301845, 333925, 382337, 503075, 744551, 1001775, 1147011, 1509225, 1911685, 2233653, 3722755, 5735055, 7264403, 9558425, 11168265, 14146469, 18613775, 21793209, 28675275, 36322015, 42439407, 55841325, 70732345, 108966045, 181610075, 212197035, 268782911, 353661725, 544830225, 806348733, 1060985175, 1343914555, 4031743665, 6719572775, 20158718325]

約数ペア:

[(1, 20158718325), (3, 6719572775), (5, 4031743665), (15, 1343914555), (19, 1060985175), (25, 806348733), (37, 544830225), (57, 353661725), (75, 268782911), (95, 212197035), (111, 181610075), (185, 108966045), (285, 70732345), (361, 55841325), (475, 42439407), (555, 36322015), (703, 28675275), (925, 21793209), (1083, 18613775), (1425, 14146469), (1805, 11168265), (2109, 9558425), (2775, 7264403), (3515, 5735055), (5415, 3722755), (9025, 2233653), (10545, 1911685), (13357, 1509225), (17575, 1147011), (20123, 1001775), (27075, 744551), (40071, 503075), (52725, 382337), (60369, 333925), (66785, 301845), (100615, 200355)]