165804560

素因数分解:

$2^4\times 5^1\times {\mathrm{43}}^1\times {\mathrm{157}}^1\times {\mathrm{307}}^1$

素因数の和:520

約数の個数: 80

約数和(自身を含む): 398266176

約数和(自身を除く): 232461616

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 43, 80, 86, 157, 172, 215, 307, 314, 344, 430, 614, 628, 688, 785, 860, 1228, 1256, 1535, 1570, 1720, 2456, 2512, 3070, 3140, 3440, 4912, 6140, 6280, 6751, 12280, 12560, 13201, 13502, 24560, 26402, 27004, 33755, 48199, 52804, 54008, 66005, 67510, 96398, 105608, 108016, 132010, 135020, 192796, 211216, 240995, 264020, 270040, 385592, 481990, 528040, 540080, 771184, 963980, 1056080, 1927960, 2072557, 3855920, 4145114, 8290228, 10362785, 16580456, 20725570, 33160912, 41451140, 82902280, 165804560]

約数ペア:

[(1, 165804560), (2, 82902280), (4, 41451140), (5, 33160912), (8, 20725570), (10, 16580456), (16, 10362785), (20, 8290228), (40, 4145114), (43, 3855920), (80, 2072557), (86, 1927960), (157, 1056080), (172, 963980), (215, 771184), (307, 540080), (314, 528040), (344, 481990), (430, 385592), (614, 270040), (628, 264020), (688, 240995), (785, 211216), (860, 192796), (1228, 135020), (1256, 132010), (1535, 108016), (1570, 105608), (1720, 96398), (2456, 67510), (2512, 66005), (3070, 54008), (3140, 52804), (3440, 48199), (4912, 33755), (6140, 27004), (6280, 26402), (6751, 24560), (12280, 13502), (12560, 13201)]