208805584

素因数分解:

$2^4\times {\mathrm{13}}^2\times {\mathrm{31}}^1\times {\mathrm{47}}^1\times {\mathrm{53}}^1$

素因数の和:165

約数の個数: 120

約数和(自身を含む): 470541312

約数和(自身を除く): 261735728

約数列:

[1, 2, 4, 8, 13, 16, 26, 31, 47, 52, 53, 62, 94, 104, 106, 124, 169, 188, 208, 212, 248, 338, 376, 403, 424, 496, 611, 676, 689, 752, 806, 848, 1222, 1352, 1378, 1457, 1612, 1643, 2444, 2491, 2704, 2756, 2914, 3224, 3286, 4888, 4982, 5239, 5512, 5828, 6448, 6572, 7943, 8957, 9776, 9964, 10478, 11024, 11656, 13144, 15886, 17914, 18941, 19928, 20956, 21359, 23312, 26288, 31772, 32383, 35828, 37882, 39856, 41912, 42718, 63544, 64766, 71656, 75764, 77221, 83824, 85436, 127088, 129532, 143312, 151528, 154442, 170872, 246233, 259064, 277667, 303056, 308884, 341744, 420979, 492466, 518128, 555334, 617768, 841958, 984932, 1003873, 1110668, 1235536, 1683916, 1969864, 2007746, 2221336, 3367832, 3939728, 4015492, 4442672, 6735664, 8030984, 13050349, 16061968, 26100698, 52201396, 104402792, 208805584]

約数ペア:

[(1, 208805584), (2, 104402792), (4, 52201396), (8, 26100698), (13, 16061968), (16, 13050349), (26, 8030984), (31, 6735664), (47, 4442672), (52, 4015492), (53, 3939728), (62, 3367832), (94, 2221336), (104, 2007746), (106, 1969864), (124, 1683916), (169, 1235536), (188, 1110668), (208, 1003873), (212, 984932), (248, 841958), (338, 617768), (376, 555334), (403, 518128), (424, 492466), (496, 420979), (611, 341744), (676, 308884), (689, 303056), (752, 277667), (806, 259064), (848, 246233), (1222, 170872), (1352, 154442), (1378, 151528), (1457, 143312), (1612, 129532), (1643, 127088), (2444, 85436), (2491, 83824), (2704, 77221), (2756, 75764), (2914, 71656), (3224, 64766), (3286, 63544), (4888, 42718), (4982, 41912), (5239, 39856), (5512, 37882), (5828, 35828), (6448, 32383), (6572, 31772), (7943, 26288), (8957, 23312), (9776, 21359), (9964, 20956), (10478, 19928), (11024, 18941), (11656, 17914), (13144, 15886)]