18717056

素因数分解:

$2^7\times {\mathrm{31}}^1\times {\mathrm{53}}^1\times {\mathrm{89}}^1$

素因数の和:187

約数の個数: 64

約数和(自身を含む): 39657600

約数和(自身を除く): 20940544

約数列:

[1, 2, 4, 8, 16, 31, 32, 53, 62, 64, 89, 106, 124, 128, 178, 212, 248, 356, 424, 496, 712, 848, 992, 1424, 1643, 1696, 1984, 2759, 2848, 3286, 3392, 3968, 4717, 5518, 5696, 6572, 6784, 9434, 11036, 11392, 13144, 18868, 22072, 26288, 37736, 44144, 52576, 75472, 88288, 105152, 146227, 150944, 176576, 210304, 292454, 301888, 353152, 584908, 603776, 1169816, 2339632, 4679264, 9358528, 18717056]

約数ペア:

[(1, 18717056), (2, 9358528), (4, 4679264), (8, 2339632), (16, 1169816), (31, 603776), (32, 584908), (53, 353152), (62, 301888), (64, 292454), (89, 210304), (106, 176576), (124, 150944), (128, 146227), (178, 105152), (212, 88288), (248, 75472), (356, 52576), (424, 44144), (496, 37736), (712, 26288), (848, 22072), (992, 18868), (1424, 13144), (1643, 11392), (1696, 11036), (1984, 9434), (2759, 6784), (2848, 6572), (3286, 5696), (3392, 5518), (3968, 4717)]