15907420

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{53}}^1\times {\mathrm{349}}^1$

素因数の和:454

約数の個数: 48

約数和(自身を含む): 34927200

約数和(自身を除く): 19019780

約数列:

[1, 2, 4, 5, 10, 20, 43, 53, 86, 106, 172, 212, 215, 265, 349, 430, 530, 698, 860, 1060, 1396, 1745, 2279, 3490, 4558, 6980, 9116, 11395, 15007, 18497, 22790, 30014, 36994, 45580, 60028, 73988, 75035, 92485, 150070, 184970, 300140, 369940, 795371, 1590742, 3181484, 3976855, 7953710, 15907420]

約数ペア:

[(1, 15907420), (2, 7953710), (4, 3976855), (5, 3181484), (10, 1590742), (20, 795371), (43, 369940), (53, 300140), (86, 184970), (106, 150070), (172, 92485), (212, 75035), (215, 73988), (265, 60028), (349, 45580), (430, 36994), (530, 30014), (698, 22790), (860, 18497), (1060, 15007), (1396, 11395), (1745, 9116), (2279, 6980), (3490, 4558)]