19664480

素因数分解:

$2^5\times 5^1\times {\mathrm{11}}^1\times {\mathrm{11173}}^1$

素因数の和:11199

約数の個数: 48

約数和(自身を含む): 50685264

約数和(自身を除く): 31020784

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 32, 40, 44, 55, 80, 88, 110, 160, 176, 220, 352, 440, 880, 1760, 11173, 22346, 44692, 55865, 89384, 111730, 122903, 178768, 223460, 245806, 357536, 446920, 491612, 614515, 893840, 983224, 1229030, 1787680, 1966448, 2458060, 3932896, 4916120, 9832240, 19664480]

約数ペア:

[(1, 19664480), (2, 9832240), (4, 4916120), (5, 3932896), (8, 2458060), (10, 1966448), (11, 1787680), (16, 1229030), (20, 983224), (22, 893840), (32, 614515), (40, 491612), (44, 446920), (55, 357536), (80, 245806), (88, 223460), (110, 178768), (160, 122903), (176, 111730), (220, 89384), (352, 55865), (440, 44692), (880, 22346), (1760, 11173)]