281108992

素因数分解:

$2^9\times {\mathrm{31}}^1\times {\mathrm{89}}^1\times {\mathrm{199}}^1$

素因数の和:337

約数の個数: 80

約数和(自身を含む): 589248000

約数和(自身を除く): 308139008

約数列:

[1, 2, 4, 8, 16, 31, 32, 62, 64, 89, 124, 128, 178, 199, 248, 256, 356, 398, 496, 512, 712, 796, 992, 1424, 1592, 1984, 2759, 2848, 3184, 3968, 5518, 5696, 6169, 6368, 7936, 11036, 11392, 12338, 12736, 15872, 17711, 22072, 22784, 24676, 25472, 35422, 44144, 45568, 49352, 50944, 70844, 88288, 98704, 101888, 141688, 176576, 197408, 283376, 353152, 394816, 549041, 566752, 706304, 789632, 1098082, 1133504, 1412608, 1579264, 2196164, 2267008, 3158528, 4392328, 4534016, 8784656, 9068032, 17569312, 35138624, 70277248, 140554496, 281108992]

約数ペア:

[(1, 281108992), (2, 140554496), (4, 70277248), (8, 35138624), (16, 17569312), (31, 9068032), (32, 8784656), (62, 4534016), (64, 4392328), (89, 3158528), (124, 2267008), (128, 2196164), (178, 1579264), (199, 1412608), (248, 1133504), (256, 1098082), (356, 789632), (398, 706304), (496, 566752), (512, 549041), (712, 394816), (796, 353152), (992, 283376), (1424, 197408), (1592, 176576), (1984, 141688), (2759, 101888), (2848, 98704), (3184, 88288), (3968, 70844), (5518, 50944), (5696, 49352), (6169, 45568), (6368, 44144), (7936, 35422), (11036, 25472), (11392, 24676), (12338, 22784), (12736, 22072), (15872, 17711)]