40978280

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{4721}}^1$

素因数の和:4770

約数の個数: 64

約数和(自身を含む): 108794880

約数和(自身を除く): 67816600

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, 4721, 8680, 9442, 18884, 23605, 33047, 37768, 47210, 66094, 94420, 132188, 146351, 165235, 188840, 264376, 292702, 330470, 585404, 660940, 731755, 1024457, 1170808, 1321880, 1463510, 2048914, 2927020, 4097828, 5122285, 5854040, 8195656, 10244570, 20489140, 40978280]

約数ペア:

[(1, 40978280), (2, 20489140), (4, 10244570), (5, 8195656), (7, 5854040), (8, 5122285), (10, 4097828), (14, 2927020), (20, 2048914), (28, 1463510), (31, 1321880), (35, 1170808), (40, 1024457), (56, 731755), (62, 660940), (70, 585404), (124, 330470), (140, 292702), (155, 264376), (217, 188840), (248, 165235), (280, 146351), (310, 132188), (434, 94420), (620, 66094), (868, 47210), (1085, 37768), (1240, 33047), (1736, 23605), (2170, 18884), (4340, 9442), (4721, 8680)]