20195325

素因数分解:

$3^4\times 5^2\times {\mathrm{9973}}^1$

素因数の和:9995

約数の個数: 30

約数和(自身を含む): 37412474

約数和(自身を除く): 17217149

約数列:

[1, 3, 5, 9, 15, 25, 27, 45, 75, 81, 135, 225, 405, 675, 2025, 9973, 29919, 49865, 89757, 149595, 249325, 269271, 448785, 747975, 807813, 1346355, 2243925, 4039065, 6731775, 20195325]

約数ペア:

[(1, 20195325), (3, 6731775), (5, 4039065), (9, 2243925), (15, 1346355), (25, 807813), (27, 747975), (45, 448785), (75, 269271), (81, 249325), (135, 149595), (225, 89757), (405, 49865), (675, 29919), (2025, 9973)]