212440520

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{71}}^1\times {\mathrm{127}}^1$

素因数の和:259

約数の個数: 128

約数和(自身を含む): 530841600

約数和(自身を除く): 318401080

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 31, 38, 40, 62, 71, 76, 95, 124, 127, 142, 152, 155, 190, 248, 254, 284, 310, 355, 380, 508, 568, 589, 620, 635, 710, 760, 1016, 1178, 1240, 1270, 1349, 1420, 2201, 2356, 2413, 2540, 2698, 2840, 2945, 3937, 4402, 4712, 4826, 5080, 5396, 5890, 6745, 7874, 8804, 9017, 9652, 10792, 11005, 11780, 12065, 13490, 15748, 17608, 18034, 19304, 19685, 22010, 23560, 24130, 26980, 31496, 36068, 39370, 41819, 44020, 45085, 48260, 53960, 72136, 74803, 78740, 83638, 88040, 90170, 96520, 149606, 157480, 167276, 171323, 180340, 209095, 279527, 299212, 334552, 342646, 360680, 374015, 418190, 559054, 598424, 685292, 748030, 836380, 856615, 1118108, 1370584, 1397635, 1496060, 1672760, 1713230, 2236216, 2795270, 2992120, 3426460, 5311013, 5590540, 6852920, 10622026, 11181080, 21244052, 26555065, 42488104, 53110130, 106220260, 212440520]

約数ペア:

[(1, 212440520), (2, 106220260), (4, 53110130), (5, 42488104), (8, 26555065), (10, 21244052), (19, 11181080), (20, 10622026), (31, 6852920), (38, 5590540), (40, 5311013), (62, 3426460), (71, 2992120), (76, 2795270), (95, 2236216), (124, 1713230), (127, 1672760), (142, 1496060), (152, 1397635), (155, 1370584), (190, 1118108), (248, 856615), (254, 836380), (284, 748030), (310, 685292), (355, 598424), (380, 559054), (508, 418190), (568, 374015), (589, 360680), (620, 342646), (635, 334552), (710, 299212), (760, 279527), (1016, 209095), (1178, 180340), (1240, 171323), (1270, 167276), (1349, 157480), (1420, 149606), (2201, 96520), (2356, 90170), (2413, 88040), (2540, 83638), (2698, 78740), (2840, 74803), (2945, 72136), (3937, 53960), (4402, 48260), (4712, 45085), (4826, 44020), (5080, 41819), (5396, 39370), (5890, 36068), (6745, 31496), (7874, 26980), (8804, 24130), (9017, 23560), (9652, 22010), (10792, 19685), (11005, 19304), (11780, 18034), (12065, 17608), (13490, 15748)]