261748864

素因数分解:

$2^7\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{487}}^1$

素因数の和:550

約数の個数: 128

約数和(自身を含む): 627177600

約数和(自身を除く): 365428736

約数列:

[1, 2, 4, 8, 13, 16, 17, 19, 26, 32, 34, 38, 52, 64, 68, 76, 104, 128, 136, 152, 208, 221, 247, 272, 304, 323, 416, 442, 487, 494, 544, 608, 646, 832, 884, 974, 988, 1088, 1216, 1292, 1664, 1768, 1948, 1976, 2176, 2432, 2584, 3536, 3896, 3952, 4199, 5168, 6331, 7072, 7792, 7904, 8279, 8398, 9253, 10336, 12662, 14144, 15584, 15808, 16558, 16796, 18506, 20672, 25324, 28288, 31168, 31616, 33116, 33592, 37012, 41344, 50648, 62336, 66232, 67184, 74024, 101296, 107627, 120289, 132464, 134368, 148048, 157301, 202592, 215254, 240578, 264928, 268736, 296096, 314602, 405184, 430508, 481156, 529856, 537472, 592192, 629204, 810368, 861016, 962312, 1059712, 1184384, 1258408, 1722032, 1924624, 2044913, 2516816, 3444064, 3849248, 4089826, 5033632, 6888128, 7698496, 8179652, 10067264, 13776256, 15396992, 16359304, 20134528, 32718608, 65437216, 130874432, 261748864]

約数ペア:

[(1, 261748864), (2, 130874432), (4, 65437216), (8, 32718608), (13, 20134528), (16, 16359304), (17, 15396992), (19, 13776256), (26, 10067264), (32, 8179652), (34, 7698496), (38, 6888128), (52, 5033632), (64, 4089826), (68, 3849248), (76, 3444064), (104, 2516816), (128, 2044913), (136, 1924624), (152, 1722032), (208, 1258408), (221, 1184384), (247, 1059712), (272, 962312), (304, 861016), (323, 810368), (416, 629204), (442, 592192), (487, 537472), (494, 529856), (544, 481156), (608, 430508), (646, 405184), (832, 314602), (884, 296096), (974, 268736), (988, 264928), (1088, 240578), (1216, 215254), (1292, 202592), (1664, 157301), (1768, 148048), (1948, 134368), (1976, 132464), (2176, 120289), (2432, 107627), (2584, 101296), (3536, 74024), (3896, 67184), (3952, 66232), (4199, 62336), (5168, 50648), (6331, 41344), (7072, 37012), (7792, 33592), (7904, 33116), (8279, 31616), (8398, 31168), (9253, 28288), (10336, 25324), (12662, 20672), (14144, 18506), (15584, 16796), (15808, 16558)]