20078870

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{47}}^1\times {\mathrm{359}}^1$

素因数の和:437

約数の個数: 64

約数和(自身を含む): 44789760

約数和(自身を除く): 24710890

約数列:

[1, 2, 5, 7, 10, 14, 17, 34, 35, 47, 70, 85, 94, 119, 170, 235, 238, 329, 359, 470, 595, 658, 718, 799, 1190, 1598, 1645, 1795, 2513, 3290, 3590, 3995, 5026, 5593, 6103, 7990, 11186, 12206, 12565, 16873, 25130, 27965, 30515, 33746, 42721, 55930, 61030, 84365, 85442, 118111, 168730, 213605, 236222, 286841, 427210, 573682, 590555, 1181110, 1434205, 2007887, 2868410, 4015774, 10039435, 20078870]

約数ペア:

[(1, 20078870), (2, 10039435), (5, 4015774), (7, 2868410), (10, 2007887), (14, 1434205), (17, 1181110), (34, 590555), (35, 573682), (47, 427210), (70, 286841), (85, 236222), (94, 213605), (119, 168730), (170, 118111), (235, 85442), (238, 84365), (329, 61030), (359, 55930), (470, 42721), (595, 33746), (658, 30515), (718, 27965), (799, 25130), (1190, 16873), (1598, 12565), (1645, 12206), (1795, 11186), (2513, 7990), (3290, 6103), (3590, 5593), (3995, 5026)]