247458575

素因数分解:

$5^2\times 7^2\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{379}}^1$

素因数の和:457

約数の個数: 72

約数和(自身を含む): 394818480

約数和(自身を除く): 147359905

約数列:

[1, 5, 7, 13, 25, 35, 41, 49, 65, 91, 175, 205, 245, 287, 325, 379, 455, 533, 637, 1025, 1225, 1435, 1895, 2009, 2275, 2653, 2665, 3185, 3731, 4927, 7175, 9475, 10045, 13265, 13325, 15539, 15925, 18571, 18655, 24635, 26117, 34489, 50225, 66325, 77695, 92855, 93275, 108773, 123175, 130585, 172445, 202007, 241423, 388475, 464275, 543865, 652925, 761411, 862225, 1010035, 1207115, 1414049, 2719325, 3807055, 5050175, 6035575, 7070245, 9898343, 19035275, 35351225, 49491715, 247458575]

約数ペア:

[(1, 247458575), (5, 49491715), (7, 35351225), (13, 19035275), (25, 9898343), (35, 7070245), (41, 6035575), (49, 5050175), (65, 3807055), (91, 2719325), (175, 1414049), (205, 1207115), (245, 1010035), (287, 862225), (325, 761411), (379, 652925), (455, 543865), (533, 464275), (637, 388475), (1025, 241423), (1225, 202007), (1435, 172445), (1895, 130585), (2009, 123175), (2275, 108773), (2653, 93275), (2665, 92855), (3185, 77695), (3731, 66325), (4927, 50225), (7175, 34489), (9475, 26117), (10045, 24635), (13265, 18655), (13325, 18571), (15539, 15925)]