20678256

素因数分解:

$2^4\times 3^2\times {\mathrm{17}}^1\times {\mathrm{8447}}^1$

素因数の和:8478

約数の個数: 60

約数和(自身を含む): 61281792

約数和(自身を除く): 40603536

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 17, 18, 24, 34, 36, 48, 51, 68, 72, 102, 136, 144, 153, 204, 272, 306, 408, 612, 816, 1224, 2448, 8447, 16894, 25341, 33788, 50682, 67576, 76023, 101364, 135152, 143599, 152046, 202728, 287198, 304092, 405456, 430797, 574396, 608184, 861594, 1148792, 1216368, 1292391, 1723188, 2297584, 2584782, 3446376, 5169564, 6892752, 10339128, 20678256]

約数ペア:

[(1, 20678256), (2, 10339128), (3, 6892752), (4, 5169564), (6, 3446376), (8, 2584782), (9, 2297584), (12, 1723188), (16, 1292391), (17, 1216368), (18, 1148792), (24, 861594), (34, 608184), (36, 574396), (48, 430797), (51, 405456), (68, 304092), (72, 287198), (102, 202728), (136, 152046), (144, 143599), (153, 135152), (204, 101364), (272, 76023), (306, 67576), (408, 50682), (612, 33788), (816, 25341), (1224, 16894), (2448, 8447)]