257177984

素因数分解:

$2^7\times 7^1\times {\mathrm{31}}^1\times {\mathrm{47}}^1\times {\mathrm{197}}^1$

素因数の和:296

約数の個数: 128

約数和(自身を含む): 620421120

約数和(自身を除く): 363243136

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 31, 32, 47, 56, 62, 64, 94, 112, 124, 128, 188, 197, 217, 224, 248, 329, 376, 394, 434, 448, 496, 658, 752, 788, 868, 896, 992, 1316, 1379, 1457, 1504, 1576, 1736, 1984, 2632, 2758, 2914, 3008, 3152, 3472, 3968, 5264, 5516, 5828, 6016, 6107, 6304, 6944, 9259, 10199, 10528, 11032, 11656, 12214, 12608, 13888, 18518, 20398, 21056, 22064, 23312, 24428, 25216, 27776, 37036, 40796, 42112, 42749, 44128, 46624, 48856, 64813, 74072, 81592, 85498, 88256, 93248, 97712, 129626, 148144, 163184, 170996, 176512, 186496, 195424, 259252, 287029, 296288, 326368, 341992, 390848, 518504, 574058, 592576, 652736, 683984, 781696, 1037008, 1148116, 1185152, 1305472, 1367968, 2009203, 2074016, 2296232, 2735936, 4018406, 4148032, 4592464, 5471872, 8036812, 8296064, 9184928, 16073624, 18369856, 32147248, 36739712, 64294496, 128588992, 257177984]

約数ペア:

[(1, 257177984), (2, 128588992), (4, 64294496), (7, 36739712), (8, 32147248), (14, 18369856), (16, 16073624), (28, 9184928), (31, 8296064), (32, 8036812), (47, 5471872), (56, 4592464), (62, 4148032), (64, 4018406), (94, 2735936), (112, 2296232), (124, 2074016), (128, 2009203), (188, 1367968), (197, 1305472), (217, 1185152), (224, 1148116), (248, 1037008), (329, 781696), (376, 683984), (394, 652736), (434, 592576), (448, 574058), (496, 518504), (658, 390848), (752, 341992), (788, 326368), (868, 296288), (896, 287029), (992, 259252), (1316, 195424), (1379, 186496), (1457, 176512), (1504, 170996), (1576, 163184), (1736, 148144), (1984, 129626), (2632, 97712), (2758, 93248), (2914, 88256), (3008, 85498), (3152, 81592), (3472, 74072), (3968, 64813), (5264, 48856), (5516, 46624), (5828, 44128), (6016, 42749), (6107, 42112), (6304, 40796), (6944, 37036), (9259, 27776), (10199, 25216), (10528, 24428), (11032, 23312), (11656, 22064), (12214, 21056), (12608, 20398), (13888, 18518)]