218960

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1$

素因数の和:60

約数の個数: 80

約数和(自身を含む): 642816

約数和(自身を除く): 423856

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 17, 20, 23, 28, 34, 35, 40, 46, 56, 68, 70, 80, 85, 92, 112, 115, 119, 136, 140, 161, 170, 184, 230, 238, 272, 280, 322, 340, 368, 391, 460, 476, 560, 595, 644, 680, 782, 805, 920, 952, 1190, 1288, 1360, 1564, 1610, 1840, 1904, 1955, 2380, 2576, 2737, 3128, 3220, 3910, 4760, 5474, 6256, 6440, 7820, 9520, 10948, 12880, 13685, 15640, 21896, 27370, 31280, 43792, 54740, 109480, 218960]

約数ペア:

[(1, 218960), (2, 109480), (4, 54740), (5, 43792), (7, 31280), (8, 27370), (10, 21896), (14, 15640), (16, 13685), (17, 12880), (20, 10948), (23, 9520), (28, 7820), (34, 6440), (35, 6256), (40, 5474), (46, 4760), (56, 3910), (68, 3220), (70, 3128), (80, 2737), (85, 2576), (92, 2380), (112, 1955), (115, 1904), (119, 1840), (136, 1610), (140, 1564), (161, 1360), (170, 1288), (184, 1190), (230, 952), (238, 920), (272, 805), (280, 782), (322, 680), (340, 644), (368, 595), (391, 560), (460, 476)]