18117260

素因数分解:

$2^2\times 5^1\times 7^3\times {\mathrm{19}}^1\times {\mathrm{139}}^1$

素因数の和:188

約数の個数: 96

約数和(自身を含む): 47040000

約数和(自身を除く): 28922740

約数列:

[1, 2, 4, 5, 7, 10, 14, 19, 20, 28, 35, 38, 49, 70, 76, 95, 98, 133, 139, 140, 190, 196, 245, 266, 278, 343, 380, 490, 532, 556, 665, 686, 695, 931, 973, 980, 1330, 1372, 1390, 1715, 1862, 1946, 2641, 2660, 2780, 3430, 3724, 3892, 4655, 4865, 5282, 6517, 6811, 6860, 9310, 9730, 10564, 13034, 13205, 13622, 18487, 18620, 19460, 26068, 26410, 27244, 32585, 34055, 36974, 47677, 52820, 65170, 68110, 73948, 92435, 95354, 129409, 130340, 136220, 184870, 190708, 238385, 258818, 369740, 476770, 517636, 647045, 905863, 953540, 1294090, 1811726, 2588180, 3623452, 4529315, 9058630, 18117260]

約数ペア:

[(1, 18117260), (2, 9058630), (4, 4529315), (5, 3623452), (7, 2588180), (10, 1811726), (14, 1294090), (19, 953540), (20, 905863), (28, 647045), (35, 517636), (38, 476770), (49, 369740), (70, 258818), (76, 238385), (95, 190708), (98, 184870), (133, 136220), (139, 130340), (140, 129409), (190, 95354), (196, 92435), (245, 73948), (266, 68110), (278, 65170), (343, 52820), (380, 47677), (490, 36974), (532, 34055), (556, 32585), (665, 27244), (686, 26410), (695, 26068), (931, 19460), (973, 18620), (980, 18487), (1330, 13622), (1372, 13205), (1390, 13034), (1715, 10564), (1862, 9730), (1946, 9310), (2641, 6860), (2660, 6811), (2780, 6517), (3430, 5282), (3724, 4865), (3892, 4655)]