38677940

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{431}}^1\times {\mathrm{641}}^1$

素因数の和:1088

約数の個数: 48

約数和(自身を含む): 93187584

約数和(自身を除く): 54509644

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 431, 641, 862, 1282, 1724, 2155, 2564, 3017, 3205, 4310, 4487, 6034, 6410, 8620, 8974, 12068, 12820, 15085, 17948, 22435, 30170, 44870, 60340, 89740, 276271, 552542, 1105084, 1381355, 1933897, 2762710, 3867794, 5525420, 7735588, 9669485, 19338970, 38677940]

約数ペア:

[(1, 38677940), (2, 19338970), (4, 9669485), (5, 7735588), (7, 5525420), (10, 3867794), (14, 2762710), (20, 1933897), (28, 1381355), (35, 1105084), (70, 552542), (140, 276271), (431, 89740), (641, 60340), (862, 44870), (1282, 30170), (1724, 22435), (2155, 17948), (2564, 15085), (3017, 12820), (3205, 12068), (4310, 8974), (4487, 8620), (6034, 6410)]