217071540

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{172279}}^1$

素因数の和:172301

約数の個数: 72

約数和(自身を含む): 752519040

約数和(自身を除く): 535447500

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 42, 45, 60, 63, 70, 84, 90, 105, 126, 140, 180, 210, 252, 315, 420, 630, 1260, 172279, 344558, 516837, 689116, 861395, 1033674, 1205953, 1550511, 1722790, 2067348, 2411906, 2584185, 3101022, 3445580, 3617859, 4823812, 5168370, 6029765, 6202044, 7235718, 7752555, 10336740, 10853577, 12059530, 14471436, 15505110, 18089295, 21707154, 24119060, 31010220, 36178590, 43414308, 54267885, 72357180, 108535770, 217071540]

約数ペア:

[(1, 217071540), (2, 108535770), (3, 72357180), (4, 54267885), (5, 43414308), (6, 36178590), (7, 31010220), (9, 24119060), (10, 21707154), (12, 18089295), (14, 15505110), (15, 14471436), (18, 12059530), (20, 10853577), (21, 10336740), (28, 7752555), (30, 7235718), (35, 6202044), (36, 6029765), (42, 5168370), (45, 4823812), (60, 3617859), (63, 3445580), (70, 3101022), (84, 2584185), (90, 2411906), (105, 2067348), (126, 1722790), (140, 1550511), (180, 1205953), (210, 1033674), (252, 861395), (315, 689116), (420, 516837), (630, 344558), (1260, 172279)]