72448640

素因数分解:

$2^7\times 5^1\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{251}}^1$

素因数の和:322

約数の個数: 128

約数和(自身を含む): 194322240

約数和(自身を除く): 121873600

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 32, 40, 41, 44, 55, 64, 80, 82, 88, 110, 128, 160, 164, 176, 205, 220, 251, 320, 328, 352, 410, 440, 451, 502, 640, 656, 704, 820, 880, 902, 1004, 1255, 1312, 1408, 1640, 1760, 1804, 2008, 2255, 2510, 2624, 2761, 3280, 3520, 3608, 4016, 4510, 5020, 5248, 5522, 6560, 7040, 7216, 8032, 9020, 10040, 10291, 11044, 13120, 13805, 14432, 16064, 18040, 20080, 20582, 22088, 26240, 27610, 28864, 32128, 36080, 40160, 41164, 44176, 51455, 55220, 57728, 72160, 80320, 82328, 88352, 102910, 110440, 113201, 144320, 160640, 164656, 176704, 205820, 220880, 226402, 288640, 329312, 353408, 411640, 441760, 452804, 566005, 658624, 823280, 883520, 905608, 1132010, 1317248, 1646560, 1767040, 1811216, 2264020, 3293120, 3622432, 4528040, 6586240, 7244864, 9056080, 14489728, 18112160, 36224320, 72448640]

約数ペア:

[(1, 72448640), (2, 36224320), (4, 18112160), (5, 14489728), (8, 9056080), (10, 7244864), (11, 6586240), (16, 4528040), (20, 3622432), (22, 3293120), (32, 2264020), (40, 1811216), (41, 1767040), (44, 1646560), (55, 1317248), (64, 1132010), (80, 905608), (82, 883520), (88, 823280), (110, 658624), (128, 566005), (160, 452804), (164, 441760), (176, 411640), (205, 353408), (220, 329312), (251, 288640), (320, 226402), (328, 220880), (352, 205820), (410, 176704), (440, 164656), (451, 160640), (502, 144320), (640, 113201), (656, 110440), (704, 102910), (820, 88352), (880, 82328), (902, 80320), (1004, 72160), (1255, 57728), (1312, 55220), (1408, 51455), (1640, 44176), (1760, 41164), (1804, 40160), (2008, 36080), (2255, 32128), (2510, 28864), (2624, 27610), (2761, 26240), (3280, 22088), (3520, 20582), (3608, 20080), (4016, 18040), (4510, 16064), (5020, 14432), (5248, 13805), (5522, 13120), (6560, 11044), (7040, 10291), (7216, 10040), (8032, 9020)]