20251420

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{67}}^1\times {\mathrm{127}}^1$

素因数の和:227

約数の個数: 96

約数和(自身を含む): 52641792

約数和(自身を除く): 32390372

約数列:

[1, 2, 4, 5, 7, 10, 14, 17, 20, 28, 34, 35, 67, 68, 70, 85, 119, 127, 134, 140, 170, 238, 254, 268, 335, 340, 469, 476, 508, 595, 635, 670, 889, 938, 1139, 1190, 1270, 1340, 1778, 1876, 2159, 2278, 2345, 2380, 2540, 3556, 4318, 4445, 4556, 4690, 5695, 7973, 8509, 8636, 8890, 9380, 10795, 11390, 15113, 15946, 17018, 17780, 21590, 22780, 30226, 31892, 34036, 39865, 42545, 43180, 59563, 60452, 75565, 79730, 85090, 119126, 144653, 151130, 159460, 170180, 238252, 289306, 297815, 302260, 578612, 595630, 723265, 1012571, 1191260, 1446530, 2025142, 2893060, 4050284, 5062855, 10125710, 20251420]

約数ペア:

[(1, 20251420), (2, 10125710), (4, 5062855), (5, 4050284), (7, 2893060), (10, 2025142), (14, 1446530), (17, 1191260), (20, 1012571), (28, 723265), (34, 595630), (35, 578612), (67, 302260), (68, 297815), (70, 289306), (85, 238252), (119, 170180), (127, 159460), (134, 151130), (140, 144653), (170, 119126), (238, 85090), (254, 79730), (268, 75565), (335, 60452), (340, 59563), (469, 43180), (476, 42545), (508, 39865), (595, 34036), (635, 31892), (670, 30226), (889, 22780), (938, 21590), (1139, 17780), (1190, 17018), (1270, 15946), (1340, 15113), (1778, 11390), (1876, 10795), (2159, 9380), (2278, 8890), (2345, 8636), (2380, 8509), (2540, 7973), (3556, 5695), (4318, 4690), (4445, 4556)]