71920836

素因数分解:

$2^2\times 3^2\times {\mathrm{13}}^1\times {\mathrm{239}}^1\times {\mathrm{643}}^1$

素因数の和:905

約数の個数: 72

約数和(自身を含む): 196909440

約数和(自身を除く): 124988604

約数列:

[1, 2, 3, 4, 6, 9, 12, 13, 18, 26, 36, 39, 52, 78, 117, 156, 234, 239, 468, 478, 643, 717, 956, 1286, 1434, 1929, 2151, 2572, 2868, 3107, 3858, 4302, 5787, 6214, 7716, 8359, 8604, 9321, 11574, 12428, 16718, 18642, 23148, 25077, 27963, 33436, 37284, 50154, 55926, 75231, 100308, 111852, 150462, 153677, 300924, 307354, 461031, 614708, 922062, 1383093, 1844124, 1997801, 2766186, 3995602, 5532372, 5993403, 7991204, 11986806, 17980209, 23973612, 35960418, 71920836]

約数ペア:

[(1, 71920836), (2, 35960418), (3, 23973612), (4, 17980209), (6, 11986806), (9, 7991204), (12, 5993403), (13, 5532372), (18, 3995602), (26, 2766186), (36, 1997801), (39, 1844124), (52, 1383093), (78, 922062), (117, 614708), (156, 461031), (234, 307354), (239, 300924), (468, 153677), (478, 150462), (643, 111852), (717, 100308), (956, 75231), (1286, 55926), (1434, 50154), (1929, 37284), (2151, 33436), (2572, 27963), (2868, 25077), (3107, 23148), (3858, 18642), (4302, 16718), (5787, 12428), (6214, 11574), (7716, 9321), (8359, 8604)]