18850280

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{1459}}^1$

素因数の和:1506

約数の個数: 64

約数和(自身を含む): 47304000

約数和(自身を除く): 28453720

約数列:

[1, 2, 4, 5, 8, 10, 17, 19, 20, 34, 38, 40, 68, 76, 85, 95, 136, 152, 170, 190, 323, 340, 380, 646, 680, 760, 1292, 1459, 1615, 2584, 2918, 3230, 5836, 6460, 7295, 11672, 12920, 14590, 24803, 27721, 29180, 49606, 55442, 58360, 99212, 110884, 124015, 138605, 198424, 221768, 248030, 277210, 471257, 496060, 554420, 942514, 992120, 1108840, 1885028, 2356285, 3770056, 4712570, 9425140, 18850280]

約数ペア:

[(1, 18850280), (2, 9425140), (4, 4712570), (5, 3770056), (8, 2356285), (10, 1885028), (17, 1108840), (19, 992120), (20, 942514), (34, 554420), (38, 496060), (40, 471257), (68, 277210), (76, 248030), (85, 221768), (95, 198424), (136, 138605), (152, 124015), (170, 110884), (190, 99212), (323, 58360), (340, 55442), (380, 49606), (646, 29180), (680, 27721), (760, 24803), (1292, 14590), (1459, 12920), (1615, 11672), (2584, 7295), (2918, 6460), (3230, 5836)]