3994756720

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{1610789}}^1$

素因数の和:1610833

約数の個数: 40

約数和(自身を含む): 9587422080

約数和(自身を除く): 5592665360

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 80, 124, 155, 248, 310, 496, 620, 1240, 2480, 1610789, 3221578, 6443156, 8053945, 12886312, 16107890, 25772624, 32215780, 49934459, 64431560, 99868918, 128863120, 199737836, 249672295, 399475672, 499344590, 798951344, 998689180, 1997378360, 3994756720]

約数ペア:

[(1, 3994756720), (2, 1997378360), (4, 998689180), (5, 798951344), (8, 499344590), (10, 399475672), (16, 249672295), (20, 199737836), (31, 128863120), (40, 99868918), (62, 64431560), (80, 49934459), (124, 32215780), (155, 25772624), (248, 16107890), (310, 12886312), (496, 8053945), (620, 6443156), (1240, 3221578), (2480, 1610789)]