40377520

素因数分解:

$2^4\times 5^1\times {\mathrm{53}}^1\times {\mathrm{89}}^1\times {\mathrm{107}}^1$

素因数の和:262

約数の個数: 80

約数和(自身を含む): 97627680

約数和(自身を除く): 57250160

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 53, 80, 89, 106, 107, 178, 212, 214, 265, 356, 424, 428, 445, 530, 535, 712, 848, 856, 890, 1060, 1070, 1424, 1712, 1780, 2120, 2140, 3560, 4240, 4280, 4717, 5671, 7120, 8560, 9434, 9523, 11342, 18868, 19046, 22684, 23585, 28355, 37736, 38092, 45368, 47170, 47615, 56710, 75472, 76184, 90736, 94340, 95230, 113420, 152368, 188680, 190460, 226840, 377360, 380920, 453680, 504719, 761840, 1009438, 2018876, 2523595, 4037752, 5047190, 8075504, 10094380, 20188760, 40377520]

約数ペア:

[(1, 40377520), (2, 20188760), (4, 10094380), (5, 8075504), (8, 5047190), (10, 4037752), (16, 2523595), (20, 2018876), (40, 1009438), (53, 761840), (80, 504719), (89, 453680), (106, 380920), (107, 377360), (178, 226840), (212, 190460), (214, 188680), (265, 152368), (356, 113420), (424, 95230), (428, 94340), (445, 90736), (530, 76184), (535, 75472), (712, 56710), (848, 47615), (856, 47170), (890, 45368), (1060, 38092), (1070, 37736), (1424, 28355), (1712, 23585), (1780, 22684), (2120, 19046), (2140, 18868), (3560, 11342), (4240, 9523), (4280, 9434), (4717, 8560), (5671, 7120)]