31206140

素因数分解:

$2^2\times 5^1\times 7^3\times {\mathrm{4549}}^1$

素因数の和:4579

約数の個数: 48

約数和(自身を含む): 76440000

約数和(自身を除く): 45233860

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 343, 490, 686, 980, 1372, 1715, 3430, 4549, 6860, 9098, 18196, 22745, 31843, 45490, 63686, 90980, 127372, 159215, 222901, 318430, 445802, 636860, 891604, 1114505, 1560307, 2229010, 3120614, 4458020, 6241228, 7801535, 15603070, 31206140]

約数ペア:

[(1, 31206140), (2, 15603070), (4, 7801535), (5, 6241228), (7, 4458020), (10, 3120614), (14, 2229010), (20, 1560307), (28, 1114505), (35, 891604), (49, 636860), (70, 445802), (98, 318430), (140, 222901), (196, 159215), (245, 127372), (343, 90980), (490, 63686), (686, 45490), (980, 31843), (1372, 22745), (1715, 18196), (3430, 9098), (4549, 6860)]