208603408

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{61}}^1\times {\mathrm{401}}^1$

素因数の和:524

約数の個数: 80

約数和(自身を含む): 454314672

約数和(自身を除く): 245711264

約数列:

[1, 2, 4, 8, 13, 16, 26, 41, 52, 61, 82, 104, 122, 164, 208, 244, 328, 401, 488, 533, 656, 793, 802, 976, 1066, 1586, 1604, 2132, 2501, 3172, 3208, 4264, 5002, 5213, 6344, 6416, 8528, 10004, 10426, 12688, 16441, 20008, 20852, 24461, 32513, 32882, 40016, 41704, 48922, 65026, 65764, 83408, 97844, 130052, 131528, 195688, 213733, 260104, 263056, 317993, 391376, 427466, 520208, 635986, 854932, 1002901, 1271972, 1709864, 2005802, 2543944, 3419728, 4011604, 5087888, 8023208, 13037713, 16046416, 26075426, 52150852, 104301704, 208603408]

約数ペア:

[(1, 208603408), (2, 104301704), (4, 52150852), (8, 26075426), (13, 16046416), (16, 13037713), (26, 8023208), (41, 5087888), (52, 4011604), (61, 3419728), (82, 2543944), (104, 2005802), (122, 1709864), (164, 1271972), (208, 1002901), (244, 854932), (328, 635986), (401, 520208), (488, 427466), (533, 391376), (656, 317993), (793, 263056), (802, 260104), (976, 213733), (1066, 195688), (1586, 131528), (1604, 130052), (2132, 97844), (2501, 83408), (3172, 65764), (3208, 65026), (4264, 48922), (5002, 41704), (5213, 40016), (6344, 32882), (6416, 32513), (8528, 24461), (10004, 20852), (10426, 20008), (12688, 16441)]