825020

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{83}}^1$

素因数の和:170

約数の個数: 48

約数和(自身を含む): 2032128

約数和(自身を除く): 1207108

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 71, 83, 140, 142, 166, 284, 332, 355, 415, 497, 581, 710, 830, 994, 1162, 1420, 1660, 1988, 2324, 2485, 2905, 4970, 5810, 5893, 9940, 11620, 11786, 23572, 29465, 41251, 58930, 82502, 117860, 165004, 206255, 412510, 825020]

約数ペア:

[(1, 825020), (2, 412510), (4, 206255), (5, 165004), (7, 117860), (10, 82502), (14, 58930), (20, 41251), (28, 29465), (35, 23572), (70, 11786), (71, 11620), (83, 9940), (140, 5893), (142, 5810), (166, 4970), (284, 2905), (332, 2485), (355, 2324), (415, 1988), (497, 1660), (581, 1420), (710, 1162), (830, 994)]