18855480

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{22447}}^1$

素因数の和:22468

約数の個数: 64

約数和(自身を含む): 64650240

約数和(自身を除く): 45794760

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 70, 84, 105, 120, 140, 168, 210, 280, 420, 840, 22447, 44894, 67341, 89788, 112235, 134682, 157129, 179576, 224470, 269364, 314258, 336705, 448940, 471387, 538728, 628516, 673410, 785645, 897880, 942774, 1257032, 1346820, 1571290, 1885548, 2356935, 2693640, 3142580, 3771096, 4713870, 6285160, 9427740, 18855480]

約数ペア:

[(1, 18855480), (2, 9427740), (3, 6285160), (4, 4713870), (5, 3771096), (6, 3142580), (7, 2693640), (8, 2356935), (10, 1885548), (12, 1571290), (14, 1346820), (15, 1257032), (20, 942774), (21, 897880), (24, 785645), (28, 673410), (30, 628516), (35, 538728), (40, 471387), (42, 448940), (56, 336705), (60, 314258), (70, 269364), (84, 224470), (105, 179576), (120, 157129), (140, 134682), (168, 112235), (210, 89788), (280, 67341), (420, 44894), (840, 22447)]