20418768

素因数分解:

$2^4\times 3^2\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{439}}^1$

素因数の和:489

約数の個数: 120

約数和(自身を含む): 63835200

約数和(自身を除く): 43416432

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 17, 18, 19, 24, 34, 36, 38, 48, 51, 57, 68, 72, 76, 102, 114, 136, 144, 152, 153, 171, 204, 228, 272, 304, 306, 323, 342, 408, 439, 456, 612, 646, 684, 816, 878, 912, 969, 1224, 1292, 1317, 1368, 1756, 1938, 2448, 2584, 2634, 2736, 2907, 3512, 3876, 3951, 5168, 5268, 5814, 7024, 7463, 7752, 7902, 8341, 10536, 11628, 14926, 15504, 15804, 16682, 21072, 22389, 23256, 25023, 29852, 31608, 33364, 44778, 46512, 50046, 59704, 63216, 66728, 67167, 75069, 89556, 100092, 119408, 133456, 134334, 141797, 150138, 179112, 200184, 268668, 283594, 300276, 358224, 400368, 425391, 537336, 567188, 600552, 850782, 1074672, 1134376, 1201104, 1276173, 1701564, 2268752, 2552346, 3403128, 5104692, 6806256, 10209384, 20418768]

約数ペア:

[(1, 20418768), (2, 10209384), (3, 6806256), (4, 5104692), (6, 3403128), (8, 2552346), (9, 2268752), (12, 1701564), (16, 1276173), (17, 1201104), (18, 1134376), (19, 1074672), (24, 850782), (34, 600552), (36, 567188), (38, 537336), (48, 425391), (51, 400368), (57, 358224), (68, 300276), (72, 283594), (76, 268668), (102, 200184), (114, 179112), (136, 150138), (144, 141797), (152, 134334), (153, 133456), (171, 119408), (204, 100092), (228, 89556), (272, 75069), (304, 67167), (306, 66728), (323, 63216), (342, 59704), (408, 50046), (439, 46512), (456, 44778), (612, 33364), (646, 31608), (684, 29852), (816, 25023), (878, 23256), (912, 22389), (969, 21072), (1224, 16682), (1292, 15804), (1317, 15504), (1368, 14926), (1756, 11628), (1938, 10536), (2448, 8341), (2584, 7902), (2634, 7752), (2736, 7463), (2907, 7024), (3512, 5814), (3876, 5268), (3951, 5168)]