20469737984

素因数分解:

$2^9\times {\mathrm{23}}^1\times {\mathrm{89}}^1\times {\mathrm{19531}}^1$

素因数の和:19661

約数の個数: 80

約数和(自身を含む): 43159469760

約数和(自身を除く): 22689731776

約数列:

[1, 2, 4, 8, 16, 23, 32, 46, 64, 89, 92, 128, 178, 184, 256, 356, 368, 512, 712, 736, 1424, 1472, 2047, 2848, 2944, 4094, 5696, 5888, 8188, 11392, 11776, 16376, 19531, 22784, 32752, 39062, 45568, 65504, 78124, 131008, 156248, 262016, 312496, 449213, 524032, 624992, 898426, 1048064, 1249984, 1738259, 1796852, 2499968, 3476518, 3593704, 4999936, 6953036, 7187408, 9999872, 13906072, 14374816, 27812144, 28749632, 39979957, 55624288, 57499264, 79959914, 111248576, 114998528, 159919828, 222497152, 229997056, 319839656, 444994304, 639679312, 889988608, 1279358624, 2558717248, 5117434496, 10234868992, 20469737984]

約数ペア:

[(1, 20469737984), (2, 10234868992), (4, 5117434496), (8, 2558717248), (16, 1279358624), (23, 889988608), (32, 639679312), (46, 444994304), (64, 319839656), (89, 229997056), (92, 222497152), (128, 159919828), (178, 114998528), (184, 111248576), (256, 79959914), (356, 57499264), (368, 55624288), (512, 39979957), (712, 28749632), (736, 27812144), (1424, 14374816), (1472, 13906072), (2047, 9999872), (2848, 7187408), (2944, 6953036), (4094, 4999936), (5696, 3593704), (5888, 3476518), (8188, 2499968), (11392, 1796852), (11776, 1738259), (16376, 1249984), (19531, 1048064), (22784, 898426), (32752, 624992), (39062, 524032), (45568, 449213), (65504, 312496), (78124, 262016), (131008, 156248)]