20648712

素因数分解:

$2^3\times 3^1\times 7^1\times {\mathrm{89}}^1\times {\mathrm{1381}}^1$

素因数の和:1486

約数の個数: 64

約数和(自身を含む): 59702400

約数和(自身を除く): 39053688

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 21, 24, 28, 42, 56, 84, 89, 168, 178, 267, 356, 534, 623, 712, 1068, 1246, 1381, 1869, 2136, 2492, 2762, 3738, 4143, 4984, 5524, 7476, 8286, 9667, 11048, 14952, 16572, 19334, 29001, 33144, 38668, 58002, 77336, 116004, 122909, 232008, 245818, 368727, 491636, 737454, 860363, 983272, 1474908, 1720726, 2581089, 2949816, 3441452, 5162178, 6882904, 10324356, 20648712]

約数ペア:

[(1, 20648712), (2, 10324356), (3, 6882904), (4, 5162178), (6, 3441452), (7, 2949816), (8, 2581089), (12, 1720726), (14, 1474908), (21, 983272), (24, 860363), (28, 737454), (42, 491636), (56, 368727), (84, 245818), (89, 232008), (168, 122909), (178, 116004), (267, 77336), (356, 58002), (534, 38668), (623, 33144), (712, 29001), (1068, 19334), (1246, 16572), (1381, 14952), (1869, 11048), (2136, 9667), (2492, 8286), (2762, 7476), (3738, 5524), (4143, 4984)]