257445486

素因数分解:

$2^1\times 3^3\times {\mathrm{23}}^1\times {\mathrm{53}}^1\times {\mathrm{3911}}^1$

素因数の和:3998

約数の個数: 64

約数和(自身を含む): 608394240

約数和(自身を除く): 350948754

約数列:

[1, 2, 3, 6, 9, 18, 23, 27, 46, 53, 54, 69, 106, 138, 159, 207, 318, 414, 477, 621, 954, 1219, 1242, 1431, 2438, 2862, 3657, 3911, 7314, 7822, 10971, 11733, 21942, 23466, 32913, 35199, 65826, 70398, 89953, 105597, 179906, 207283, 211194, 269859, 414566, 539718, 621849, 809577, 1243698, 1619154, 1865547, 2428731, 3731094, 4767509, 4857462, 5596641, 9535018, 11193282, 14302527, 28605054, 42907581, 85815162, 128722743, 257445486]

約数ペア:

[(1, 257445486), (2, 128722743), (3, 85815162), (6, 42907581), (9, 28605054), (18, 14302527), (23, 11193282), (27, 9535018), (46, 5596641), (53, 4857462), (54, 4767509), (69, 3731094), (106, 2428731), (138, 1865547), (159, 1619154), (207, 1243698), (318, 809577), (414, 621849), (477, 539718), (621, 414566), (954, 269859), (1219, 211194), (1242, 207283), (1431, 179906), (2438, 105597), (2862, 89953), (3657, 70398), (3911, 65826), (7314, 35199), (7822, 32913), (10971, 23466), (11733, 21942)]