208987568

素因数分解:

$2^4\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{47}}^1\times {\mathrm{281}}^1$

素因数の和:402

約数の個数: 80

約数和(自身を含む): 443114496

約数和(自身を除く): 234126928

約数列:

[1, 2, 4, 8, 16, 23, 43, 46, 47, 86, 92, 94, 172, 184, 188, 281, 344, 368, 376, 562, 688, 752, 989, 1081, 1124, 1978, 2021, 2162, 2248, 3956, 4042, 4324, 4496, 6463, 7912, 8084, 8648, 12083, 12926, 13207, 15824, 16168, 17296, 24166, 25852, 26414, 32336, 46483, 48332, 51704, 52828, 92966, 96664, 103408, 105656, 185932, 193328, 211312, 277909, 303761, 371864, 555818, 567901, 607522, 743728, 1111636, 1135802, 1215044, 2223272, 2271604, 2430088, 4446544, 4543208, 4860176, 9086416, 13061723, 26123446, 52246892, 104493784, 208987568]

約数ペア:

[(1, 208987568), (2, 104493784), (4, 52246892), (8, 26123446), (16, 13061723), (23, 9086416), (43, 4860176), (46, 4543208), (47, 4446544), (86, 2430088), (92, 2271604), (94, 2223272), (172, 1215044), (184, 1135802), (188, 1111636), (281, 743728), (344, 607522), (368, 567901), (376, 555818), (562, 371864), (688, 303761), (752, 277909), (989, 211312), (1081, 193328), (1124, 185932), (1978, 105656), (2021, 103408), (2162, 96664), (2248, 92966), (3956, 52828), (4042, 51704), (4324, 48332), (4496, 46483), (6463, 32336), (7912, 26414), (8084, 25852), (8648, 24166), (12083, 17296), (12926, 16168), (13207, 15824)]