72885760

素因数分解:

$2^9\times 5^1\times {\mathrm{71}}^1\times {\mathrm{401}}^1$

素因数の和:495

約数の個数: 80

約数和(自身を含む): 177658272

約数和(自身を除く): 104772512

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 71, 80, 128, 142, 160, 256, 284, 320, 355, 401, 512, 568, 640, 710, 802, 1136, 1280, 1420, 1604, 2005, 2272, 2560, 2840, 3208, 4010, 4544, 5680, 6416, 8020, 9088, 11360, 12832, 16040, 18176, 22720, 25664, 28471, 32080, 36352, 45440, 51328, 56942, 64160, 90880, 102656, 113884, 128320, 142355, 181760, 205312, 227768, 256640, 284710, 455536, 513280, 569420, 911072, 1026560, 1138840, 1822144, 2277680, 3644288, 4555360, 7288576, 9110720, 14577152, 18221440, 36442880, 72885760]

約数ペア:

[(1, 72885760), (2, 36442880), (4, 18221440), (5, 14577152), (8, 9110720), (10, 7288576), (16, 4555360), (20, 3644288), (32, 2277680), (40, 1822144), (64, 1138840), (71, 1026560), (80, 911072), (128, 569420), (142, 513280), (160, 455536), (256, 284710), (284, 256640), (320, 227768), (355, 205312), (401, 181760), (512, 142355), (568, 128320), (640, 113884), (710, 102656), (802, 90880), (1136, 64160), (1280, 56942), (1420, 51328), (1604, 45440), (2005, 36352), (2272, 32080), (2560, 28471), (2840, 25664), (3208, 22720), (4010, 18176), (4544, 16040), (5680, 12832), (6416, 11360), (8020, 9088)]