257089910

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{11}}^2\times {\mathrm{127}}^1\times {\mathrm{239}}^1$

素因数の和:402

約数の個数: 96

約数和(自身を含む): 588349440

約数和(自身を除く): 331259530

約数列:

[1, 2, 5, 7, 10, 11, 14, 22, 35, 55, 70, 77, 110, 121, 127, 154, 239, 242, 254, 385, 478, 605, 635, 770, 847, 889, 1195, 1210, 1270, 1397, 1673, 1694, 1778, 2390, 2629, 2794, 3346, 4235, 4445, 5258, 6985, 8365, 8470, 8890, 9779, 13145, 13970, 15367, 16730, 18403, 19558, 26290, 28919, 30353, 30734, 36806, 48895, 57838, 60706, 76835, 92015, 97790, 107569, 144595, 151765, 153670, 184030, 202433, 212471, 215138, 289190, 303530, 333883, 404866, 424942, 537845, 667766, 1012165, 1062355, 1075690, 1669415, 2024330, 2124710, 2337181, 3338830, 3672713, 4674362, 7345426, 11685905, 18363565, 23371810, 25708991, 36727130, 51417982, 128544955, 257089910]

約数ペア:

[(1, 257089910), (2, 128544955), (5, 51417982), (7, 36727130), (10, 25708991), (11, 23371810), (14, 18363565), (22, 11685905), (35, 7345426), (55, 4674362), (70, 3672713), (77, 3338830), (110, 2337181), (121, 2124710), (127, 2024330), (154, 1669415), (239, 1075690), (242, 1062355), (254, 1012165), (385, 667766), (478, 537845), (605, 424942), (635, 404866), (770, 333883), (847, 303530), (889, 289190), (1195, 215138), (1210, 212471), (1270, 202433), (1397, 184030), (1673, 153670), (1694, 151765), (1778, 144595), (2390, 107569), (2629, 97790), (2794, 92015), (3346, 76835), (4235, 60706), (4445, 57838), (5258, 48895), (6985, 36806), (8365, 30734), (8470, 30353), (8890, 28919), (9779, 26290), (13145, 19558), (13970, 18403), (15367, 16730)]