128528015

素因数分解:

$5^1\times 7^1\times {\mathrm{11}}^3\times {\mathrm{31}}^1\times {\mathrm{89}}^1$

素因数の和:165

約数の個数: 64

約数和(自身を含む): 202383360

約数和(自身を除く): 73855345

約数列:

[1, 5, 7, 11, 31, 35, 55, 77, 89, 121, 155, 217, 341, 385, 445, 605, 623, 847, 979, 1085, 1331, 1705, 2387, 2759, 3115, 3751, 4235, 4895, 6655, 6853, 9317, 10769, 11935, 13795, 18755, 19313, 26257, 30349, 34265, 41261, 46585, 53845, 75383, 96565, 118459, 131285, 151745, 206305, 212443, 288827, 333839, 376915, 592295, 829213, 1062215, 1444135, 1669195, 2336873, 3672229, 4146065, 11684365, 18361145, 25705603, 128528015]

約数ペア:

[(1, 128528015), (5, 25705603), (7, 18361145), (11, 11684365), (31, 4146065), (35, 3672229), (55, 2336873), (77, 1669195), (89, 1444135), (121, 1062215), (155, 829213), (217, 592295), (341, 376915), (385, 333839), (445, 288827), (605, 212443), (623, 206305), (847, 151745), (979, 131285), (1085, 118459), (1331, 96565), (1705, 75383), (2387, 53845), (2759, 46585), (3115, 41261), (3751, 34265), (4235, 30349), (4895, 26257), (6655, 19313), (6853, 18755), (9317, 13795), (10769, 11935)]