642803896

素因数分解:

$2^3\times 7^1\times {\mathrm{19}}^1\times {\mathrm{67}}^1\times {\mathrm{71}}^1\times {\mathrm{127}}^1$

素因数の和:297

約数の個数: 128

約数和(自身を含む): 1504051200

約数和(自身を除く): 861247304

約数列:

[1, 2, 4, 7, 8, 14, 19, 28, 38, 56, 67, 71, 76, 127, 133, 134, 142, 152, 254, 266, 268, 284, 469, 497, 508, 532, 536, 568, 889, 938, 994, 1016, 1064, 1273, 1349, 1778, 1876, 1988, 2413, 2546, 2698, 3556, 3752, 3976, 4757, 4826, 5092, 5396, 7112, 8509, 8911, 9017, 9443, 9514, 9652, 10184, 10792, 16891, 17018, 17822, 18034, 18886, 19028, 19304, 33299, 33782, 34036, 35644, 36068, 37772, 38056, 59563, 63119, 66598, 67564, 68072, 71288, 72136, 75544, 90383, 119126, 126238, 133196, 135128, 161671, 171323, 180766, 238252, 252476, 266392, 323342, 342646, 361532, 476504, 504952, 604139, 632681, 646684, 685292, 723064, 1131697, 1199261, 1208278, 1265362, 1293368, 1370584, 2263394, 2398522, 2416556, 2530724, 4228973, 4526788, 4797044, 4833112, 5061448, 8457946, 9053576, 9594088, 11478641, 16915892, 22957282, 33831784, 45914564, 80350487, 91829128, 160700974, 321401948, 642803896]

約数ペア:

[(1, 642803896), (2, 321401948), (4, 160700974), (7, 91829128), (8, 80350487), (14, 45914564), (19, 33831784), (28, 22957282), (38, 16915892), (56, 11478641), (67, 9594088), (71, 9053576), (76, 8457946), (127, 5061448), (133, 4833112), (134, 4797044), (142, 4526788), (152, 4228973), (254, 2530724), (266, 2416556), (268, 2398522), (284, 2263394), (469, 1370584), (497, 1293368), (508, 1265362), (532, 1208278), (536, 1199261), (568, 1131697), (889, 723064), (938, 685292), (994, 646684), (1016, 632681), (1064, 604139), (1273, 504952), (1349, 476504), (1778, 361532), (1876, 342646), (1988, 323342), (2413, 266392), (2546, 252476), (2698, 238252), (3556, 180766), (3752, 171323), (3976, 161671), (4757, 135128), (4826, 133196), (5092, 126238), (5396, 119126), (7112, 90383), (8509, 75544), (8911, 72136), (9017, 71288), (9443, 68072), (9514, 67564), (9652, 66598), (10184, 63119), (10792, 59563), (16891, 38056), (17018, 37772), (17822, 36068), (18034, 35644), (18886, 34036), (19028, 33782), (19304, 33299)]