77126980

素因数分解:

$2^2\times 5^1\times 7^3\times {\mathrm{11243}}^1$

素因数の和:11273

約数の個数: 48

約数和(自身を含む): 188899200

約数和(自身を除く): 111772220

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 343, 490, 686, 980, 1372, 1715, 3430, 6860, 11243, 22486, 44972, 56215, 78701, 112430, 157402, 224860, 314804, 393505, 550907, 787010, 1101814, 1574020, 2203628, 2754535, 3856349, 5509070, 7712698, 11018140, 15425396, 19281745, 38563490, 77126980]

約数ペア:

[(1, 77126980), (2, 38563490), (4, 19281745), (5, 15425396), (7, 11018140), (10, 7712698), (14, 5509070), (20, 3856349), (28, 2754535), (35, 2203628), (49, 1574020), (70, 1101814), (98, 787010), (140, 550907), (196, 393505), (245, 314804), (343, 224860), (490, 157402), (686, 112430), (980, 78701), (1372, 56215), (1715, 44972), (3430, 22486), (6860, 11243)]