81855618

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{113}}^1\times {\mathrm{251}}^1$

素因数の和:419

約数の個数: 64

約数和(自身を含む): 183399552

約数和(自身を除く): 101543934

約数列:

[1, 2, 3, 6, 13, 26, 37, 39, 74, 78, 111, 113, 222, 226, 251, 339, 481, 502, 678, 753, 962, 1443, 1469, 1506, 2886, 2938, 3263, 4181, 4407, 6526, 8362, 8814, 9287, 9789, 12543, 18574, 19578, 25086, 27861, 28363, 54353, 55722, 56726, 85089, 108706, 120731, 163059, 170178, 241462, 326118, 362193, 368719, 724386, 737438, 1049431, 1106157, 2098862, 2212314, 3148293, 6296586, 13642603, 27285206, 40927809, 81855618]

約数ペア:

[(1, 81855618), (2, 40927809), (3, 27285206), (6, 13642603), (13, 6296586), (26, 3148293), (37, 2212314), (39, 2098862), (74, 1106157), (78, 1049431), (111, 737438), (113, 724386), (222, 368719), (226, 362193), (251, 326118), (339, 241462), (481, 170178), (502, 163059), (678, 120731), (753, 108706), (962, 85089), (1443, 56726), (1469, 55722), (1506, 54353), (2886, 28363), (2938, 27861), (3263, 25086), (4181, 19578), (4407, 18574), (6526, 12543), (8362, 9789), (8814, 9287)]