261683140

素因数分解:

$2^2\times 5^1\times {\mathrm{89}}^1\times {\mathrm{113}}^1\times {\mathrm{1301}}^1$

素因数の和:1512

約数の個数: 48

約数和(自身を含む): 561057840

約数和(自身を除く): 299374700

約数列:

[1, 2, 4, 5, 10, 20, 89, 113, 178, 226, 356, 445, 452, 565, 890, 1130, 1301, 1780, 2260, 2602, 5204, 6505, 10057, 13010, 20114, 26020, 40228, 50285, 100570, 115789, 147013, 201140, 231578, 294026, 463156, 578945, 588052, 735065, 1157890, 1470130, 2315780, 2940260, 13084157, 26168314, 52336628, 65420785, 130841570, 261683140]

約数ペア:

[(1, 261683140), (2, 130841570), (4, 65420785), (5, 52336628), (10, 26168314), (20, 13084157), (89, 2940260), (113, 2315780), (178, 1470130), (226, 1157890), (356, 735065), (445, 588052), (452, 578945), (565, 463156), (890, 294026), (1130, 231578), (1301, 201140), (1780, 147013), (2260, 115789), (2602, 100570), (5204, 50285), (6505, 40228), (10057, 26020), (13010, 20114)]