61438280

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{49547}}^1$

素因数の和:49589

約数の個数: 32

約数和(自身を含む): 142698240

約数和(自身を除く): 81259960

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 248, 310, 620, 1240, 49547, 99094, 198188, 247735, 396376, 495470, 990940, 1535957, 1981880, 3071914, 6143828, 7679785, 12287656, 15359570, 30719140, 61438280]

約数ペア:

[(1, 61438280), (2, 30719140), (4, 15359570), (5, 12287656), (8, 7679785), (10, 6143828), (20, 3071914), (31, 1981880), (40, 1535957), (62, 990940), (124, 495470), (155, 396376), (248, 247735), (310, 198188), (620, 99094), (1240, 49547)]