204048640

素因数分解:

$2^8\times 5^1\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{239}}^1$

素因数の和:312

約数の個数: 144

約数和(自身を含む): 529804800

約数和(自身を除く): 325756160

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 23, 29, 32, 40, 46, 58, 64, 80, 92, 115, 116, 128, 145, 160, 184, 230, 232, 239, 256, 290, 320, 368, 460, 464, 478, 580, 640, 667, 736, 920, 928, 956, 1160, 1195, 1280, 1334, 1472, 1840, 1856, 1912, 2320, 2390, 2668, 2944, 3335, 3680, 3712, 3824, 4640, 4780, 5336, 5497, 5888, 6670, 6931, 7360, 7424, 7648, 9280, 9560, 10672, 10994, 13340, 13862, 14720, 15296, 18560, 19120, 21344, 21988, 26680, 27485, 27724, 29440, 30592, 34655, 37120, 38240, 42688, 43976, 53360, 54970, 55448, 61184, 69310, 76480, 85376, 87952, 106720, 109940, 110896, 138620, 152960, 159413, 170752, 175904, 213440, 219880, 221792, 277240, 305920, 318826, 351808, 426880, 439760, 443584, 554480, 637652, 703616, 797065, 853760, 879520, 887168, 1108960, 1275304, 1407232, 1594130, 1759040, 1774336, 2217920, 2550608, 3188260, 3518080, 4435840, 5101216, 6376520, 7036160, 8871680, 10202432, 12753040, 20404864, 25506080, 40809728, 51012160, 102024320, 204048640]

約数ペア:

[(1, 204048640), (2, 102024320), (4, 51012160), (5, 40809728), (8, 25506080), (10, 20404864), (16, 12753040), (20, 10202432), (23, 8871680), (29, 7036160), (32, 6376520), (40, 5101216), (46, 4435840), (58, 3518080), (64, 3188260), (80, 2550608), (92, 2217920), (115, 1774336), (116, 1759040), (128, 1594130), (145, 1407232), (160, 1275304), (184, 1108960), (230, 887168), (232, 879520), (239, 853760), (256, 797065), (290, 703616), (320, 637652), (368, 554480), (460, 443584), (464, 439760), (478, 426880), (580, 351808), (640, 318826), (667, 305920), (736, 277240), (920, 221792), (928, 219880), (956, 213440), (1160, 175904), (1195, 170752), (1280, 159413), (1334, 152960), (1472, 138620), (1840, 110896), (1856, 109940), (1912, 106720), (2320, 87952), (2390, 85376), (2668, 76480), (2944, 69310), (3335, 61184), (3680, 55448), (3712, 54970), (3824, 53360), (4640, 43976), (4780, 42688), (5336, 38240), (5497, 37120), (5888, 34655), (6670, 30592), (6931, 29440), (7360, 27724), (7424, 27485), (7648, 26680), (9280, 21988), (9560, 21344), (10672, 19120), (10994, 18560), (13340, 15296), (13862, 14720)]