783020

素因数分解:

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

素因数の和:87

約数の個数: 72

約数和(自身を含む): 2068416

約数和(自身を除く): 1285396

約数列:

[1, 2, 4, 5, 7, 10, 14, 17, 20, 28, 34, 35, 47, 49, 68, 70, 85, 94, 98, 119, 140, 170, 188, 196, 235, 238, 245, 329, 340, 470, 476, 490, 595, 658, 799, 833, 940, 980, 1190, 1316, 1598, 1645, 1666, 2303, 2380, 3196, 3290, 3332, 3995, 4165, 4606, 5593, 6580, 7990, 8330, 9212, 11186, 11515, 15980, 16660, 22372, 23030, 27965, 39151, 46060, 55930, 78302, 111860, 156604, 195755, 391510, 783020]

約数ペア:

[(1, 783020), (2, 391510), (4, 195755), (5, 156604), (7, 111860), (10, 78302), (14, 55930), (17, 46060), (20, 39151), (28, 27965), (34, 23030), (35, 22372), (47, 16660), (49, 15980), (68, 11515), (70, 11186), (85, 9212), (94, 8330), (98, 7990), (119, 6580), (140, 5593), (170, 4606), (188, 4165), (196, 3995), (235, 3332), (238, 3290), (245, 3196), (329, 2380), (340, 2303), (470, 1666), (476, 1645), (490, 1598), (595, 1316), (658, 1190), (799, 980), (833, 940)]