81470325

素因数分解:

$3^1\times 5^2\times {\mathrm{31}}^1\times {\mathrm{67}}^1\times {\mathrm{523}}^1$

素因数の和:634

約数の個数: 48

約数和(自身を含む): 141387776

約数和(自身を除く): 59917451

約数列:

[1, 3, 5, 15, 25, 31, 67, 75, 93, 155, 201, 335, 465, 523, 775, 1005, 1569, 1675, 2077, 2325, 2615, 5025, 6231, 7845, 10385, 13075, 16213, 31155, 35041, 39225, 48639, 51925, 81065, 105123, 155775, 175205, 243195, 405325, 525615, 876025, 1086271, 1215975, 2628075, 3258813, 5431355, 16294065, 27156775, 81470325]

約数ペア:

[(1, 81470325), (3, 27156775), (5, 16294065), (15, 5431355), (25, 3258813), (31, 2628075), (67, 1215975), (75, 1086271), (93, 876025), (155, 525615), (201, 405325), (335, 243195), (465, 175205), (523, 155775), (775, 105123), (1005, 81065), (1569, 51925), (1675, 48639), (2077, 39225), (2325, 35041), (2615, 31155), (5025, 16213), (6231, 13075), (7845, 10385)]