40741960

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{227}}^1\times {\mathrm{641}}^1$

素因数の和:886

約数の個数: 64

約数和(自身を含む): 105390720

約数和(自身を除く): 64648760

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 227, 280, 454, 641, 908, 1135, 1282, 1589, 1816, 2270, 2564, 3178, 3205, 4487, 4540, 5128, 6356, 6410, 7945, 8974, 9080, 12712, 12820, 15890, 17948, 22435, 25640, 31780, 35896, 44870, 63560, 89740, 145507, 179480, 291014, 582028, 727535, 1018549, 1164056, 1455070, 2037098, 2910140, 4074196, 5092745, 5820280, 8148392, 10185490, 20370980, 40741960]

約数ペア:

[(1, 40741960), (2, 20370980), (4, 10185490), (5, 8148392), (7, 5820280), (8, 5092745), (10, 4074196), (14, 2910140), (20, 2037098), (28, 1455070), (35, 1164056), (40, 1018549), (56, 727535), (70, 582028), (140, 291014), (227, 179480), (280, 145507), (454, 89740), (641, 63560), (908, 44870), (1135, 35896), (1282, 31780), (1589, 25640), (1816, 22435), (2270, 17948), (2564, 15890), (3178, 12820), (3205, 12712), (4487, 9080), (4540, 8974), (5128, 7945), (6356, 6410)]