209215840

素因数分解:

$2^5\times 5^1\times {\mathrm{19}}^1\times {\mathrm{68821}}^1$

素因数の和:68855

約数の個数: 48

約数和(自身を含む): 520294320

約数和(自身を除く): 311078480

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 32, 38, 40, 76, 80, 95, 152, 160, 190, 304, 380, 608, 760, 1520, 3040, 68821, 137642, 275284, 344105, 550568, 688210, 1101136, 1307599, 1376420, 2202272, 2615198, 2752840, 5230396, 5505680, 6537995, 10460792, 11011360, 13075990, 20921584, 26151980, 41843168, 52303960, 104607920, 209215840]

約数ペア:

[(1, 209215840), (2, 104607920), (4, 52303960), (5, 41843168), (8, 26151980), (10, 20921584), (16, 13075990), (19, 11011360), (20, 10460792), (32, 6537995), (38, 5505680), (40, 5230396), (76, 2752840), (80, 2615198), (95, 2202272), (152, 1376420), (160, 1307599), (190, 1101136), (304, 688210), (380, 550568), (608, 344105), (760, 275284), (1520, 137642), (3040, 68821)]