20178077140

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{4084631}}^1$

素因数の和:4084672

約数の個数: 48

約数和(自身を含む): 48035272320

約数和(自身を除く): 27857195180

約数列:

[1, 2, 4, 5, 10, 13, 19, 20, 26, 38, 52, 65, 76, 95, 130, 190, 247, 260, 380, 494, 988, 1235, 2470, 4940, 4084631, 8169262, 16338524, 20423155, 40846310, 53100203, 77607989, 81692620, 106200406, 155215978, 212400812, 265501015, 310431956, 388039945, 531002030, 776079890, 1008903857, 1062004060, 1552159780, 2017807714, 4035615428, 5044519285, 10089038570, 20178077140]

約数ペア:

[(1, 20178077140), (2, 10089038570), (4, 5044519285), (5, 4035615428), (10, 2017807714), (13, 1552159780), (19, 1062004060), (20, 1008903857), (26, 776079890), (38, 531002030), (52, 388039945), (65, 310431956), (76, 265501015), (95, 212400812), (130, 155215978), (190, 106200406), (247, 81692620), (260, 77607989), (380, 53100203), (494, 40846310), (988, 20423155), (1235, 16338524), (2470, 8169262), (4940, 4084631)]