19405925

素因数分解:

$5^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{593}}^1$

素因数の和:638

約数の個数: 48

約数和(自身を含む): 31819392

約数和(自身を除く): 12413467

約数列:

[1, 5, 7, 11, 17, 25, 35, 55, 77, 85, 119, 175, 187, 275, 385, 425, 593, 595, 935, 1309, 1925, 2965, 2975, 4151, 4675, 6523, 6545, 10081, 14825, 20755, 32615, 32725, 45661, 50405, 70567, 103775, 110891, 163075, 228305, 252025, 352835, 554455, 776237, 1141525, 1764175, 2772275, 3881185, 19405925]

約数ペア:

[(1, 19405925), (5, 3881185), (7, 2772275), (11, 1764175), (17, 1141525), (25, 776237), (35, 554455), (55, 352835), (77, 252025), (85, 228305), (119, 163075), (175, 110891), (187, 103775), (275, 70567), (385, 50405), (425, 45661), (593, 32725), (595, 32615), (935, 20755), (1309, 14825), (1925, 10081), (2965, 6545), (2975, 6523), (4151, 4675)]