164938360

素因数分解:

$2^3\times 5^1\times {\mathrm{89}}^1\times {\mathrm{107}}^1\times {\mathrm{433}}^1$

素因数の和:640

約数の個数: 64

約数和(自身を含む): 379663200

約数和(自身を除く): 214724840

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 89, 107, 178, 214, 356, 428, 433, 445, 535, 712, 856, 866, 890, 1070, 1732, 1780, 2140, 2165, 3464, 3560, 4280, 4330, 8660, 9523, 17320, 19046, 38092, 38537, 46331, 47615, 76184, 77074, 92662, 95230, 154148, 185324, 190460, 192685, 231655, 308296, 370648, 380920, 385370, 463310, 770740, 926620, 1541480, 1853240, 4123459, 8246918, 16493836, 20617295, 32987672, 41234590, 82469180, 164938360]

約数ペア:

[(1, 164938360), (2, 82469180), (4, 41234590), (5, 32987672), (8, 20617295), (10, 16493836), (20, 8246918), (40, 4123459), (89, 1853240), (107, 1541480), (178, 926620), (214, 770740), (356, 463310), (428, 385370), (433, 380920), (445, 370648), (535, 308296), (712, 231655), (856, 192685), (866, 190460), (890, 185324), (1070, 154148), (1732, 95230), (1780, 92662), (2140, 77074), (2165, 76184), (3464, 47615), (3560, 46331), (4280, 38537), (4330, 38092), (8660, 19046), (9523, 17320)]