399502208

素因数分解:

$2^7\times 7^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{757}}^1$

素因数の和:828

約数の個数: 128

約数和(自身を含む): 989644800

約数和(自身を除く): 590142592

約数列:

[1, 2, 4, 7, 8, 14, 16, 19, 28, 31, 32, 38, 56, 62, 64, 76, 112, 124, 128, 133, 152, 217, 224, 248, 266, 304, 434, 448, 496, 532, 589, 608, 757, 868, 896, 992, 1064, 1178, 1216, 1514, 1736, 1984, 2128, 2356, 2432, 3028, 3472, 3968, 4123, 4256, 4712, 5299, 6056, 6944, 8246, 8512, 9424, 10598, 12112, 13888, 14383, 16492, 17024, 18848, 21196, 23467, 24224, 27776, 28766, 32984, 37696, 42392, 46934, 48448, 57532, 65968, 75392, 84784, 93868, 96896, 100681, 115064, 131936, 164269, 169568, 187736, 201362, 230128, 263872, 328538, 339136, 375472, 402724, 445873, 460256, 527744, 657076, 678272, 750944, 805448, 891746, 920512, 1314152, 1501888, 1610896, 1783492, 1841024, 2628304, 3003776, 3121111, 3221792, 3566984, 5256608, 6242222, 6443584, 7133968, 10513216, 12484444, 12887168, 14267936, 21026432, 24968888, 28535872, 49937776, 57071744, 99875552, 199751104, 399502208]

約数ペア:

[(1, 399502208), (2, 199751104), (4, 99875552), (7, 57071744), (8, 49937776), (14, 28535872), (16, 24968888), (19, 21026432), (28, 14267936), (31, 12887168), (32, 12484444), (38, 10513216), (56, 7133968), (62, 6443584), (64, 6242222), (76, 5256608), (112, 3566984), (124, 3221792), (128, 3121111), (133, 3003776), (152, 2628304), (217, 1841024), (224, 1783492), (248, 1610896), (266, 1501888), (304, 1314152), (434, 920512), (448, 891746), (496, 805448), (532, 750944), (589, 678272), (608, 657076), (757, 527744), (868, 460256), (896, 445873), (992, 402724), (1064, 375472), (1178, 339136), (1216, 328538), (1514, 263872), (1736, 230128), (1984, 201362), (2128, 187736), (2356, 169568), (2432, 164269), (3028, 131936), (3472, 115064), (3968, 100681), (4123, 96896), (4256, 93868), (4712, 84784), (5299, 75392), (6056, 65968), (6944, 57532), (8246, 48448), (8512, 46934), (9424, 42392), (10598, 37696), (12112, 32984), (13888, 28766), (14383, 27776), (16492, 24224), (17024, 23467), (18848, 21196)]