28862900

素因数分解:

$2^2\times 5^2\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{1381}}^1$

素因数の和:1425

約数の個数: 72

約数和(自身を含む): 71974560

約数和(自身を除く): 43111660

約数列:

[1, 2, 4, 5, 10, 11, 19, 20, 22, 25, 38, 44, 50, 55, 76, 95, 100, 110, 190, 209, 220, 275, 380, 418, 475, 550, 836, 950, 1045, 1100, 1381, 1900, 2090, 2762, 4180, 5225, 5524, 6905, 10450, 13810, 15191, 20900, 26239, 27620, 30382, 34525, 52478, 60764, 69050, 75955, 104956, 131195, 138100, 151910, 262390, 288629, 303820, 379775, 524780, 577258, 655975, 759550, 1154516, 1311950, 1443145, 1519100, 2623900, 2886290, 5772580, 7215725, 14431450, 28862900]

約数ペア:

[(1, 28862900), (2, 14431450), (4, 7215725), (5, 5772580), (10, 2886290), (11, 2623900), (19, 1519100), (20, 1443145), (22, 1311950), (25, 1154516), (38, 759550), (44, 655975), (50, 577258), (55, 524780), (76, 379775), (95, 303820), (100, 288629), (110, 262390), (190, 151910), (209, 138100), (220, 131195), (275, 104956), (380, 75955), (418, 69050), (475, 60764), (550, 52478), (836, 34525), (950, 30382), (1045, 27620), (1100, 26239), (1381, 20900), (1900, 15191), (2090, 13810), (2762, 10450), (4180, 6905), (5225, 5524)]