81317370

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{53}}^1\times {\mathrm{199}}^1\times {\mathrm{257}}^1$

素因数の和:519

約数の個数: 64

約数和(自身を含む): 200620800

約数和(自身を除く): 119303430

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 53, 106, 159, 199, 257, 265, 318, 398, 514, 530, 597, 771, 795, 995, 1194, 1285, 1542, 1590, 1990, 2570, 2985, 3855, 5970, 7710, 10547, 13621, 21094, 27242, 31641, 40863, 51143, 52735, 63282, 68105, 81726, 102286, 105470, 136210, 153429, 158205, 204315, 255715, 306858, 316410, 408630, 511430, 767145, 1534290, 2710579, 5421158, 8131737, 13552895, 16263474, 27105790, 40658685, 81317370]

約数ペア:

[(1, 81317370), (2, 40658685), (3, 27105790), (5, 16263474), (6, 13552895), (10, 8131737), (15, 5421158), (30, 2710579), (53, 1534290), (106, 767145), (159, 511430), (199, 408630), (257, 316410), (265, 306858), (318, 255715), (398, 204315), (514, 158205), (530, 153429), (597, 136210), (771, 105470), (795, 102286), (995, 81726), (1194, 68105), (1285, 63282), (1542, 52735), (1590, 51143), (1990, 40863), (2570, 31641), (2985, 27242), (3855, 21094), (5970, 13621), (7710, 10547)]