20010496

素因数分解:

$2^9\times {\mathrm{11}}^2\times {\mathrm{17}}^1\times {\mathrm{19}}^1$

素因数の和:76

約数の個数: 120

約数和(自身を含む): 48981240

約数和(自身を除く): 28970744

約数列:

[1, 2, 4, 8, 11, 16, 17, 19, 22, 32, 34, 38, 44, 64, 68, 76, 88, 121, 128, 136, 152, 176, 187, 209, 242, 256, 272, 304, 323, 352, 374, 418, 484, 512, 544, 608, 646, 704, 748, 836, 968, 1088, 1216, 1292, 1408, 1496, 1672, 1936, 2057, 2176, 2299, 2432, 2584, 2816, 2992, 3344, 3553, 3872, 4114, 4352, 4598, 4864, 5168, 5632, 5984, 6688, 7106, 7744, 8228, 8704, 9196, 9728, 10336, 11968, 13376, 14212, 15488, 16456, 18392, 20672, 23936, 26752, 28424, 30976, 32912, 36784, 39083, 41344, 47872, 53504, 56848, 61952, 65824, 73568, 78166, 82688, 95744, 107008, 113696, 131648, 147136, 156332, 165376, 227392, 263296, 294272, 312664, 454784, 526592, 588544, 625328, 909568, 1053184, 1177088, 1250656, 1819136, 2501312, 5002624, 10005248, 20010496]

約数ペア:

[(1, 20010496), (2, 10005248), (4, 5002624), (8, 2501312), (11, 1819136), (16, 1250656), (17, 1177088), (19, 1053184), (22, 909568), (32, 625328), (34, 588544), (38, 526592), (44, 454784), (64, 312664), (68, 294272), (76, 263296), (88, 227392), (121, 165376), (128, 156332), (136, 147136), (152, 131648), (176, 113696), (187, 107008), (209, 95744), (242, 82688), (256, 78166), (272, 73568), (304, 65824), (323, 61952), (352, 56848), (374, 53504), (418, 47872), (484, 41344), (512, 39083), (544, 36784), (608, 32912), (646, 30976), (704, 28424), (748, 26752), (836, 23936), (968, 20672), (1088, 18392), (1216, 16456), (1292, 15488), (1408, 14212), (1496, 13376), (1672, 11968), (1936, 10336), (2057, 9728), (2176, 9196), (2299, 8704), (2432, 8228), (2584, 7744), (2816, 7106), (2992, 6688), (3344, 5984), (3553, 5632), (3872, 5168), (4114, 4864), (4352, 4598)]