63438440

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{121997}}^1$

素因数の和:122021

約数の個数: 32

約数和(自身を含む): 153717480

約数和(自身を除く): 90279040

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 121997, 243994, 487988, 609985, 975976, 1219970, 1585961, 2439940, 3171922, 4879880, 6343844, 7929805, 12687688, 15859610, 31719220, 63438440]

約数ペア:

[(1, 63438440), (2, 31719220), (4, 15859610), (5, 12687688), (8, 7929805), (10, 6343844), (13, 4879880), (20, 3171922), (26, 2439940), (40, 1585961), (52, 1219970), (65, 975976), (104, 609985), (130, 487988), (260, 243994), (520, 121997)]