2800420

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{83}}^1\times {\mathrm{241}}^1$

素因数の和:340

約数の個数: 48

約数和(自身を含む): 6830208

約数和(自身を除く): 4029788

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 83, 140, 166, 241, 332, 415, 482, 581, 830, 964, 1162, 1205, 1660, 1687, 2324, 2410, 2905, 3374, 4820, 5810, 6748, 8435, 11620, 16870, 20003, 33740, 40006, 80012, 100015, 140021, 200030, 280042, 400060, 560084, 700105, 1400210, 2800420]

約数ペア:

[(1, 2800420), (2, 1400210), (4, 700105), (5, 560084), (7, 400060), (10, 280042), (14, 200030), (20, 140021), (28, 100015), (35, 80012), (70, 40006), (83, 33740), (140, 20003), (166, 16870), (241, 11620), (332, 8435), (415, 6748), (482, 5810), (581, 4820), (830, 3374), (964, 2905), (1162, 2410), (1205, 2324), (1660, 1687)]