639847544

素因数分解:

$2^3\times 7^1\times {\mathrm{61}}^1\times {\mathrm{79}}^1\times {\mathrm{2371}}^1$

素因数の和:2524

約数の個数: 64

約数和(自身を含む): 1411814400

約数和(自身を除く): 771966856

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 61, 79, 122, 158, 244, 316, 427, 488, 553, 632, 854, 1106, 1708, 2212, 2371, 3416, 4424, 4742, 4819, 9484, 9638, 16597, 18968, 19276, 33194, 33733, 38552, 66388, 67466, 132776, 134932, 144631, 187309, 269864, 289262, 374618, 578524, 749236, 1012417, 1157048, 1311163, 1498472, 2024834, 2622326, 4049668, 5244652, 8099336, 10489304, 11425849, 22851698, 45703396, 79980943, 91406792, 159961886, 319923772, 639847544]

約数ペア:

[(1, 639847544), (2, 319923772), (4, 159961886), (7, 91406792), (8, 79980943), (14, 45703396), (28, 22851698), (56, 11425849), (61, 10489304), (79, 8099336), (122, 5244652), (158, 4049668), (244, 2622326), (316, 2024834), (427, 1498472), (488, 1311163), (553, 1157048), (632, 1012417), (854, 749236), (1106, 578524), (1708, 374618), (2212, 289262), (2371, 269864), (3416, 187309), (4424, 144631), (4742, 134932), (4819, 132776), (9484, 67466), (9638, 66388), (16597, 38552), (18968, 33733), (19276, 33194)]