990185220

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{53}}^1\times {\mathrm{271}}^1\times {\mathrm{383}}^1$

素因数の和:722

約数の個数: 144

約数和(自身を含む): 3079544832

約数和(自身を除く): 2089359612

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 53, 60, 90, 106, 159, 180, 212, 265, 271, 318, 383, 477, 530, 542, 636, 766, 795, 813, 954, 1060, 1084, 1149, 1355, 1532, 1590, 1626, 1908, 1915, 2298, 2385, 2439, 2710, 3180, 3252, 3447, 3830, 4065, 4596, 4770, 4878, 5420, 5745, 6894, 7660, 8130, 9540, 9756, 11490, 12195, 13788, 14363, 16260, 17235, 20299, 22980, 24390, 28726, 34470, 40598, 43089, 48780, 57452, 60897, 68940, 71815, 81196, 86178, 101495, 103793, 121794, 129267, 143630, 172356, 182691, 202990, 207586, 215445, 243588, 258534, 287260, 304485, 311379, 365382, 405980, 415172, 430890, 517068, 518965, 608970, 622758, 646335, 730764, 861780, 913455, 934137, 1037930, 1217940, 1245516, 1292670, 1556895, 1826910, 1868274, 2075860, 2585340, 3113790, 3653820, 3736548, 4670685, 5501029, 6227580, 9341370, 11002058, 16503087, 18682740, 22004116, 27505145, 33006174, 49509261, 55010290, 66012348, 82515435, 99018522, 110020580, 165030870, 198037044, 247546305, 330061740, 495092610, 990185220]

約数ペア:

[(1, 990185220), (2, 495092610), (3, 330061740), (4, 247546305), (5, 198037044), (6, 165030870), (9, 110020580), (10, 99018522), (12, 82515435), (15, 66012348), (18, 55010290), (20, 49509261), (30, 33006174), (36, 27505145), (45, 22004116), (53, 18682740), (60, 16503087), (90, 11002058), (106, 9341370), (159, 6227580), (180, 5501029), (212, 4670685), (265, 3736548), (271, 3653820), (318, 3113790), (383, 2585340), (477, 2075860), (530, 1868274), (542, 1826910), (636, 1556895), (766, 1292670), (795, 1245516), (813, 1217940), (954, 1037930), (1060, 934137), (1084, 913455), (1149, 861780), (1355, 730764), (1532, 646335), (1590, 622758), (1626, 608970), (1908, 518965), (1915, 517068), (2298, 430890), (2385, 415172), (2439, 405980), (2710, 365382), (3180, 311379), (3252, 304485), (3447, 287260), (3830, 258534), (4065, 243588), (4596, 215445), (4770, 207586), (4878, 202990), (5420, 182691), (5745, 172356), (6894, 143630), (7660, 129267), (8130, 121794), (9540, 103793), (9756, 101495), (11490, 86178), (12195, 81196), (13788, 71815), (14363, 68940), (16260, 60897), (17235, 57452), (20299, 48780), (22980, 43089), (24390, 40598), (28726, 34470)]