25620140

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{2011}}^1$

素因数の和:2047

約数の個数: 72

約数和(自身を含む): 67434192

約数和(自身を除く): 41814052

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 20, 26, 28, 35, 49, 52, 65, 70, 91, 98, 130, 140, 182, 196, 245, 260, 364, 455, 490, 637, 910, 980, 1274, 1820, 2011, 2548, 3185, 4022, 6370, 8044, 10055, 12740, 14077, 20110, 26143, 28154, 40220, 52286, 56308, 70385, 98539, 104572, 130715, 140770, 183001, 197078, 261430, 281540, 366002, 394156, 492695, 522860, 732004, 915005, 985390, 1281007, 1830010, 1970780, 2562014, 3660020, 5124028, 6405035, 12810070, 25620140]

約数ペア:

[(1, 25620140), (2, 12810070), (4, 6405035), (5, 5124028), (7, 3660020), (10, 2562014), (13, 1970780), (14, 1830010), (20, 1281007), (26, 985390), (28, 915005), (35, 732004), (49, 522860), (52, 492695), (65, 394156), (70, 366002), (91, 281540), (98, 261430), (130, 197078), (140, 183001), (182, 140770), (196, 130715), (245, 104572), (260, 98539), (364, 70385), (455, 56308), (490, 52286), (637, 40220), (910, 28154), (980, 26143), (1274, 20110), (1820, 14077), (2011, 12740), (2548, 10055), (3185, 8044), (4022, 6370)]