81158272

素因数分解:

$2^7\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{151}}^1$

素因数の和:214

約数の個数: 128

約数和(自身を含む): 195350400

約数和(自身を除く): 114192128

約数列:

[1, 2, 4, 8, 13, 16, 17, 19, 26, 32, 34, 38, 52, 64, 68, 76, 104, 128, 136, 151, 152, 208, 221, 247, 272, 302, 304, 323, 416, 442, 494, 544, 604, 608, 646, 832, 884, 988, 1088, 1208, 1216, 1292, 1664, 1768, 1963, 1976, 2176, 2416, 2432, 2567, 2584, 2869, 3536, 3926, 3952, 4199, 4832, 5134, 5168, 5738, 7072, 7852, 7904, 8398, 9664, 10268, 10336, 11476, 14144, 15704, 15808, 16796, 19328, 20536, 20672, 22952, 28288, 31408, 31616, 33371, 33592, 37297, 41072, 41344, 45904, 48773, 62816, 66742, 67184, 74594, 82144, 91808, 97546, 125632, 133484, 134368, 149188, 164288, 183616, 195092, 251264, 266968, 268736, 298376, 328576, 367232, 390184, 533936, 537472, 596752, 634049, 780368, 1067872, 1193504, 1268098, 1560736, 2135744, 2387008, 2536196, 3121472, 4271488, 4774016, 5072392, 6242944, 10144784, 20289568, 40579136, 81158272]

約数ペア:

[(1, 81158272), (2, 40579136), (4, 20289568), (8, 10144784), (13, 6242944), (16, 5072392), (17, 4774016), (19, 4271488), (26, 3121472), (32, 2536196), (34, 2387008), (38, 2135744), (52, 1560736), (64, 1268098), (68, 1193504), (76, 1067872), (104, 780368), (128, 634049), (136, 596752), (151, 537472), (152, 533936), (208, 390184), (221, 367232), (247, 328576), (272, 298376), (302, 268736), (304, 266968), (323, 251264), (416, 195092), (442, 183616), (494, 164288), (544, 149188), (604, 134368), (608, 133484), (646, 125632), (832, 97546), (884, 91808), (988, 82144), (1088, 74594), (1208, 67184), (1216, 66742), (1292, 62816), (1664, 48773), (1768, 45904), (1963, 41344), (1976, 41072), (2176, 37297), (2416, 33592), (2432, 33371), (2567, 31616), (2584, 31408), (2869, 28288), (3536, 22952), (3926, 20672), (3952, 20536), (4199, 19328), (4832, 16796), (5134, 15808), (5168, 15704), (5738, 14144), (7072, 11476), (7852, 10336), (7904, 10268), (8398, 9664)]