23428405

素因数分解:

$5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{151}}^1$

素因数の和:218

約数の個数: 64

約数和(自身を含む): 39223296

約数和(自身を除く): 15794891

約数列:

[1, 5, 7, 11, 13, 31, 35, 55, 65, 77, 91, 143, 151, 155, 217, 341, 385, 403, 455, 715, 755, 1001, 1057, 1085, 1661, 1705, 1963, 2015, 2387, 2821, 4433, 4681, 5005, 5285, 8305, 9815, 11627, 11935, 13741, 14105, 21593, 22165, 23405, 31031, 32767, 51491, 58135, 60853, 68705, 107965, 151151, 155155, 163835, 257455, 304265, 360437, 425971, 669383, 755755, 1802185, 2129855, 3346915, 4685681, 23428405]

約数ペア:

[(1, 23428405), (5, 4685681), (7, 3346915), (11, 2129855), (13, 1802185), (31, 755755), (35, 669383), (55, 425971), (65, 360437), (77, 304265), (91, 257455), (143, 163835), (151, 155155), (155, 151151), (217, 107965), (341, 68705), (385, 60853), (403, 58135), (455, 51491), (715, 32767), (755, 31031), (1001, 23405), (1057, 22165), (1085, 21593), (1661, 14105), (1705, 13741), (1963, 11935), (2015, 11627), (2387, 9815), (2821, 8305), (4433, 5285), (4681, 5005)]