620489780

素因数分解:

$2^2\times 5^1\times {\mathrm{73}}^1\times {\mathrm{113}}^1\times {\mathrm{3761}}^1$

素因数の和:3956

約数の個数: 48

約数和(自身を含む): 1332921744

約数和(自身を除く): 712431964

約数列:

[1, 2, 4, 5, 10, 20, 73, 113, 146, 226, 292, 365, 452, 565, 730, 1130, 1460, 2260, 3761, 7522, 8249, 15044, 16498, 18805, 32996, 37610, 41245, 75220, 82490, 164980, 274553, 424993, 549106, 849986, 1098212, 1372765, 1699972, 2124965, 2745530, 4249930, 5491060, 8499860, 31024489, 62048978, 124097956, 155122445, 310244890, 620489780]

約数ペア:

[(1, 620489780), (2, 310244890), (4, 155122445), (5, 124097956), (10, 62048978), (20, 31024489), (73, 8499860), (113, 5491060), (146, 4249930), (226, 2745530), (292, 2124965), (365, 1699972), (452, 1372765), (565, 1098212), (730, 849986), (1130, 549106), (1460, 424993), (2260, 274553), (3761, 164980), (7522, 82490), (8249, 75220), (15044, 41245), (16498, 37610), (18805, 32996)]