38686480

素因数分解:

$2^4\times 5^1\times 7^2\times {\mathrm{71}}^1\times {\mathrm{139}}^1$

素因数の和:237

約数の個数: 120

約数和(自身を含む): 106868160

約数和(自身を除く): 68181680

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 49, 56, 70, 71, 80, 98, 112, 139, 140, 142, 196, 245, 278, 280, 284, 355, 392, 490, 497, 556, 560, 568, 695, 710, 784, 973, 980, 994, 1112, 1136, 1390, 1420, 1946, 1960, 1988, 2224, 2485, 2780, 2840, 3479, 3892, 3920, 3976, 4865, 4970, 5560, 5680, 6811, 6958, 7784, 7952, 9730, 9869, 9940, 11120, 13622, 13916, 15568, 17395, 19460, 19738, 19880, 27244, 27832, 34055, 34790, 38920, 39476, 39760, 49345, 54488, 55664, 68110, 69083, 69580, 77840, 78952, 98690, 108976, 136220, 138166, 139160, 157904, 197380, 272440, 276332, 278320, 345415, 394760, 483581, 544880, 552664, 690830, 789520, 967162, 1105328, 1381660, 1934324, 2417905, 2763320, 3868648, 4835810, 5526640, 7737296, 9671620, 19343240, 38686480]

約数ペア:

[(1, 38686480), (2, 19343240), (4, 9671620), (5, 7737296), (7, 5526640), (8, 4835810), (10, 3868648), (14, 2763320), (16, 2417905), (20, 1934324), (28, 1381660), (35, 1105328), (40, 967162), (49, 789520), (56, 690830), (70, 552664), (71, 544880), (80, 483581), (98, 394760), (112, 345415), (139, 278320), (140, 276332), (142, 272440), (196, 197380), (245, 157904), (278, 139160), (280, 138166), (284, 136220), (355, 108976), (392, 98690), (490, 78952), (497, 77840), (556, 69580), (560, 69083), (568, 68110), (695, 55664), (710, 54488), (784, 49345), (973, 39760), (980, 39476), (994, 38920), (1112, 34790), (1136, 34055), (1390, 27832), (1420, 27244), (1946, 19880), (1960, 19738), (1988, 19460), (2224, 17395), (2485, 15568), (2780, 13916), (2840, 13622), (3479, 11120), (3892, 9940), (3920, 9869), (3976, 9730), (4865, 7952), (4970, 7784), (5560, 6958), (5680, 6811)]