81879392

素因数分解:

$2^5\times 7^2\times {\mathrm{79}}^1\times {\mathrm{661}}^1$

素因数の和:764

約数の個数: 72

約数和(自身を含む): 190179360

約数和(自身を除く): 108299968

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 49, 56, 79, 98, 112, 158, 196, 224, 316, 392, 553, 632, 661, 784, 1106, 1264, 1322, 1568, 2212, 2528, 2644, 3871, 4424, 4627, 5288, 7742, 8848, 9254, 10576, 15484, 17696, 18508, 21152, 30968, 32389, 37016, 52219, 61936, 64778, 74032, 104438, 123872, 129556, 148064, 208876, 259112, 365533, 417752, 518224, 731066, 835504, 1036448, 1462132, 1671008, 2558731, 2924264, 5117462, 5848528, 10234924, 11697056, 20469848, 40939696, 81879392]

約数ペア:

[(1, 81879392), (2, 40939696), (4, 20469848), (7, 11697056), (8, 10234924), (14, 5848528), (16, 5117462), (28, 2924264), (32, 2558731), (49, 1671008), (56, 1462132), (79, 1036448), (98, 835504), (112, 731066), (158, 518224), (196, 417752), (224, 365533), (316, 259112), (392, 208876), (553, 148064), (632, 129556), (661, 123872), (784, 104438), (1106, 74032), (1264, 64778), (1322, 61936), (1568, 52219), (2212, 37016), (2528, 32389), (2644, 30968), (3871, 21152), (4424, 18508), (4627, 17696), (5288, 15484), (7742, 10576), (8848, 9254)]