919543900

素因数分解:

$2^2\times 5^2\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{20389}}^1$

素因数の和:20455

約数の個数: 72

約数和(自身を含む): 2230013520

約数和(自身を除く): 1310469620

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 25, 41, 44, 50, 55, 82, 100, 110, 164, 205, 220, 275, 410, 451, 550, 820, 902, 1025, 1100, 1804, 2050, 2255, 4100, 4510, 9020, 11275, 20389, 22550, 40778, 45100, 81556, 101945, 203890, 224279, 407780, 448558, 509725, 835949, 897116, 1019450, 1121395, 1671898, 2038900, 2242790, 3343796, 4179745, 4485580, 5606975, 8359490, 9195439, 11213950, 16718980, 18390878, 20898725, 22427900, 36781756, 41797450, 45977195, 83594900, 91954390, 183908780, 229885975, 459771950, 919543900]

約数ペア:

[(1, 919543900), (2, 459771950), (4, 229885975), (5, 183908780), (10, 91954390), (11, 83594900), (20, 45977195), (22, 41797450), (25, 36781756), (41, 22427900), (44, 20898725), (50, 18390878), (55, 16718980), (82, 11213950), (100, 9195439), (110, 8359490), (164, 5606975), (205, 4485580), (220, 4179745), (275, 3343796), (410, 2242790), (451, 2038900), (550, 1671898), (820, 1121395), (902, 1019450), (1025, 897116), (1100, 835949), (1804, 509725), (2050, 448558), (2255, 407780), (4100, 224279), (4510, 203890), (9020, 101945), (11275, 81556), (20389, 45100), (22550, 40778)]