388598920

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{89}}^1\times {\mathrm{6421}}^1$

素因数の和:6538

約数の個数: 64

約数和(自身を含む): 936327600

約数和(自身を除く): 547728680

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 89, 136, 170, 178, 340, 356, 445, 680, 712, 890, 1513, 1780, 3026, 3560, 6052, 6421, 7565, 12104, 12842, 15130, 25684, 30260, 32105, 51368, 60520, 64210, 109157, 128420, 218314, 256840, 436628, 545785, 571469, 873256, 1091570, 1142938, 2183140, 2285876, 2857345, 4366280, 4571752, 5714690, 9714973, 11429380, 19429946, 22858760, 38859892, 48574865, 77719784, 97149730, 194299460, 388598920]

約数ペア:

[(1, 388598920), (2, 194299460), (4, 97149730), (5, 77719784), (8, 48574865), (10, 38859892), (17, 22858760), (20, 19429946), (34, 11429380), (40, 9714973), (68, 5714690), (85, 4571752), (89, 4366280), (136, 2857345), (170, 2285876), (178, 2183140), (340, 1142938), (356, 1091570), (445, 873256), (680, 571469), (712, 545785), (890, 436628), (1513, 256840), (1780, 218314), (3026, 128420), (3560, 109157), (6052, 64210), (6421, 60520), (7565, 51368), (12104, 32105), (12842, 30260), (15130, 25684)]