7831180

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{61}}^1\times {\mathrm{131}}^1$

素因数の和:215

約数の個数: 72

約数和(自身を含む): 19592496

約数和(自身を除く): 11761316

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 61, 70, 98, 122, 131, 140, 196, 244, 245, 262, 305, 427, 490, 524, 610, 655, 854, 917, 980, 1220, 1310, 1708, 1834, 2135, 2620, 2989, 3668, 4270, 4585, 5978, 6419, 7991, 8540, 9170, 11956, 12838, 14945, 15982, 18340, 25676, 29890, 31964, 32095, 39955, 55937, 59780, 64190, 79910, 111874, 128380, 159820, 223748, 279685, 391559, 559370, 783118, 1118740, 1566236, 1957795, 3915590, 7831180]

約数ペア:

[(1, 7831180), (2, 3915590), (4, 1957795), (5, 1566236), (7, 1118740), (10, 783118), (14, 559370), (20, 391559), (28, 279685), (35, 223748), (49, 159820), (61, 128380), (70, 111874), (98, 79910), (122, 64190), (131, 59780), (140, 55937), (196, 39955), (244, 32095), (245, 31964), (262, 29890), (305, 25676), (427, 18340), (490, 15982), (524, 14945), (610, 12838), (655, 11956), (854, 9170), (917, 8540), (980, 7991), (1220, 6419), (1310, 5978), (1708, 4585), (1834, 4270), (2135, 3668), (2620, 2989)]