81365904

素因数分解:

$2^4\times 3^3\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{431}}^1$

素因数の和:490

約数の個数: 160

約数和(自身を含む): 257126400

約数和(自身を除く): 175760496

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 19, 23, 24, 27, 36, 38, 46, 48, 54, 57, 69, 72, 76, 92, 108, 114, 138, 144, 152, 171, 184, 207, 216, 228, 276, 304, 342, 368, 414, 431, 432, 437, 456, 513, 552, 621, 684, 828, 862, 874, 912, 1026, 1104, 1242, 1293, 1311, 1368, 1656, 1724, 1748, 2052, 2484, 2586, 2622, 2736, 3312, 3448, 3496, 3879, 3933, 4104, 4968, 5172, 5244, 6896, 6992, 7758, 7866, 8189, 8208, 9913, 9936, 10344, 10488, 11637, 11799, 15516, 15732, 16378, 19826, 20688, 20976, 23274, 23598, 24567, 29739, 31032, 31464, 32756, 39652, 46548, 47196, 49134, 59478, 62064, 62928, 65512, 73701, 79304, 89217, 93096, 94392, 98268, 118956, 131024, 147402, 158608, 178434, 186192, 188347, 188784, 196536, 221103, 237912, 267651, 294804, 356868, 376694, 393072, 442206, 475824, 535302, 565041, 589608, 713736, 753388, 884412, 1070604, 1130082, 1179216, 1427472, 1506776, 1695123, 1768824, 2141208, 2260164, 3013552, 3390246, 3537648, 4282416, 4520328, 5085369, 6780492, 9040656, 10170738, 13560984, 20341476, 27121968, 40682952, 81365904]

約数ペア:

[(1, 81365904), (2, 40682952), (3, 27121968), (4, 20341476), (6, 13560984), (8, 10170738), (9, 9040656), (12, 6780492), (16, 5085369), (18, 4520328), (19, 4282416), (23, 3537648), (24, 3390246), (27, 3013552), (36, 2260164), (38, 2141208), (46, 1768824), (48, 1695123), (54, 1506776), (57, 1427472), (69, 1179216), (72, 1130082), (76, 1070604), (92, 884412), (108, 753388), (114, 713736), (138, 589608), (144, 565041), (152, 535302), (171, 475824), (184, 442206), (207, 393072), (216, 376694), (228, 356868), (276, 294804), (304, 267651), (342, 237912), (368, 221103), (414, 196536), (431, 188784), (432, 188347), (437, 186192), (456, 178434), (513, 158608), (552, 147402), (621, 131024), (684, 118956), (828, 98268), (862, 94392), (874, 93096), (912, 89217), (1026, 79304), (1104, 73701), (1242, 65512), (1293, 62928), (1311, 62064), (1368, 59478), (1656, 49134), (1724, 47196), (1748, 46548), (2052, 39652), (2484, 32756), (2586, 31464), (2622, 31032), (2736, 29739), (3312, 24567), (3448, 23598), (3496, 23274), (3879, 20976), (3933, 20688), (4104, 19826), (4968, 16378), (5172, 15732), (5244, 15516), (6896, 11799), (6992, 11637), (7758, 10488), (7866, 10344), (8189, 9936), (8208, 9913)]