664632064

素因数分解:

$2^8\times {\mathrm{31}}^1\times {\mathrm{89}}^1\times {\mathrm{941}}^1$

素因数の和:1077

約数の個数: 72

約数和(自身を含む): 1386322560

約数和(自身を除く): 721690496

約数列:

[1, 2, 4, 8, 16, 31, 32, 62, 64, 89, 124, 128, 178, 248, 256, 356, 496, 712, 941, 992, 1424, 1882, 1984, 2759, 2848, 3764, 3968, 5518, 5696, 7528, 7936, 11036, 11392, 15056, 22072, 22784, 29171, 30112, 44144, 58342, 60224, 83749, 88288, 116684, 120448, 167498, 176576, 233368, 240896, 334996, 353152, 466736, 669992, 706304, 933472, 1339984, 1866944, 2596219, 2679968, 3733888, 5192438, 5359936, 7467776, 10384876, 10719872, 20769752, 21439744, 41539504, 83079008, 166158016, 332316032, 664632064]

約数ペア:

[(1, 664632064), (2, 332316032), (4, 166158016), (8, 83079008), (16, 41539504), (31, 21439744), (32, 20769752), (62, 10719872), (64, 10384876), (89, 7467776), (124, 5359936), (128, 5192438), (178, 3733888), (248, 2679968), (256, 2596219), (356, 1866944), (496, 1339984), (712, 933472), (941, 706304), (992, 669992), (1424, 466736), (1882, 353152), (1984, 334996), (2759, 240896), (2848, 233368), (3764, 176576), (3968, 167498), (5518, 120448), (5696, 116684), (7528, 88288), (7936, 83749), (11036, 60224), (11392, 58342), (15056, 44144), (22072, 30112), (22784, 29171)]