64690256

素因数分解:

$2^4\times {\mathrm{61}}^1\times {\mathrm{79}}^1\times {\mathrm{839}}^1$

素因数の和:987

約数の個数: 40

約数和(自身を含む): 129158400

約数和(自身を除く): 64468144

約数列:

[1, 2, 4, 8, 16, 61, 79, 122, 158, 244, 316, 488, 632, 839, 976, 1264, 1678, 3356, 4819, 6712, 9638, 13424, 19276, 38552, 51179, 66281, 77104, 102358, 132562, 204716, 265124, 409432, 530248, 818864, 1060496, 4043141, 8086282, 16172564, 32345128, 64690256]

約数ペア:

[(1, 64690256), (2, 32345128), (4, 16172564), (8, 8086282), (16, 4043141), (61, 1060496), (79, 818864), (122, 530248), (158, 409432), (244, 265124), (316, 204716), (488, 132562), (632, 102358), (839, 77104), (976, 66281), (1264, 51179), (1678, 38552), (3356, 19276), (4819, 13424), (6712, 9638)]