181594280

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{20921}}^1$

素因数の和:20970

約数の個数: 64

約数和(自身を含む): 482042880

約数和(自身を除く): 300448600

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 31, 35, 40, 56, 62, 70, 124, 140, 155, 217, 248, 280, 310, 434, 620, 868, 1085, 1240, 1736, 2170, 4340, 8680, 20921, 41842, 83684, 104605, 146447, 167368, 209210, 292894, 418420, 585788, 648551, 732235, 836840, 1171576, 1297102, 1464470, 2594204, 2928940, 3242755, 4539857, 5188408, 5857880, 6485510, 9079714, 12971020, 18159428, 22699285, 25942040, 36318856, 45398570, 90797140, 181594280]

約数ペア:

[(1, 181594280), (2, 90797140), (4, 45398570), (5, 36318856), (7, 25942040), (8, 22699285), (10, 18159428), (14, 12971020), (20, 9079714), (28, 6485510), (31, 5857880), (35, 5188408), (40, 4539857), (56, 3242755), (62, 2928940), (70, 2594204), (124, 1464470), (140, 1297102), (155, 1171576), (217, 836840), (248, 732235), (280, 648551), (310, 585788), (434, 418420), (620, 292894), (868, 209210), (1085, 167368), (1240, 146447), (1736, 104605), (2170, 83684), (4340, 41842), (8680, 20921)]