25258220

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{5113}}^1$

素因数の和:5154

約数の個数: 48

約数和(自身を含む): 60140640

約数和(自身を除く): 34882420

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, 5113, 10226, 20452, 25565, 51130, 66469, 97147, 102260, 132938, 194294, 265876, 332345, 388588, 485735, 664690, 971470, 1262911, 1329380, 1942940, 2525822, 5051644, 6314555, 12629110, 25258220]

約数ペア:

[(1, 25258220), (2, 12629110), (4, 6314555), (5, 5051644), (10, 2525822), (13, 1942940), (19, 1329380), (20, 1262911), (26, 971470), (38, 664690), (52, 485735), (65, 388588), (76, 332345), (95, 265876), (130, 194294), (190, 132938), (247, 102260), (260, 97147), (380, 66469), (494, 51130), (988, 25565), (1235, 20452), (2470, 10226), (4940, 5113)]