16645180

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{53}}^1\times {\mathrm{383}}^1$

素因数の和:486

約数の個数: 48

約数和(自身を含む): 36578304

約数和(自身を除く): 19933124

約数列:

[1, 2, 4, 5, 10, 20, 41, 53, 82, 106, 164, 205, 212, 265, 383, 410, 530, 766, 820, 1060, 1532, 1915, 2173, 3830, 4346, 7660, 8692, 10865, 15703, 20299, 21730, 31406, 40598, 43460, 62812, 78515, 81196, 101495, 157030, 202990, 314060, 405980, 832259, 1664518, 3329036, 4161295, 8322590, 16645180]

約数ペア:

[(1, 16645180), (2, 8322590), (4, 4161295), (5, 3329036), (10, 1664518), (20, 832259), (41, 405980), (53, 314060), (82, 202990), (106, 157030), (164, 101495), (205, 81196), (212, 78515), (265, 62812), (383, 43460), (410, 40598), (530, 31406), (766, 21730), (820, 20299), (1060, 15703), (1532, 10865), (1915, 8692), (2173, 7660), (3830, 4346)]