1211420

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{509}}^1$

素因数の和:542

約数の個数: 48

約数和(自身を含む): 3084480

約数和(自身を除く): 1873060

約数列:

[1, 2, 4, 5, 7, 10, 14, 17, 20, 28, 34, 35, 68, 70, 85, 119, 140, 170, 238, 340, 476, 509, 595, 1018, 1190, 2036, 2380, 2545, 3563, 5090, 7126, 8653, 10180, 14252, 17306, 17815, 34612, 35630, 43265, 60571, 71260, 86530, 121142, 173060, 242284, 302855, 605710, 1211420]

約数ペア:

[(1, 1211420), (2, 605710), (4, 302855), (5, 242284), (7, 173060), (10, 121142), (14, 86530), (17, 71260), (20, 60571), (28, 43265), (34, 35630), (35, 34612), (68, 17815), (70, 17306), (85, 14252), (119, 10180), (140, 8653), (170, 7126), (238, 5090), (340, 3563), (476, 2545), (509, 2380), (595, 2036), (1018, 1190)]