25298900

素因数分解:

$2^2\times 5^2\times {\mathrm{11}}^1\times {\mathrm{109}}^1\times {\mathrm{211}}^1$

素因数の和:345

約数の個数: 72

約数和(自身を含む): 60725280

約数和(自身を除く): 35426380

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 25, 44, 50, 55, 100, 109, 110, 211, 218, 220, 275, 422, 436, 545, 550, 844, 1055, 1090, 1100, 1199, 2110, 2180, 2321, 2398, 2725, 4220, 4642, 4796, 5275, 5450, 5995, 9284, 10550, 10900, 11605, 11990, 21100, 22999, 23210, 23980, 29975, 45998, 46420, 58025, 59950, 91996, 114995, 116050, 119900, 229990, 232100, 252989, 459980, 505978, 574975, 1011956, 1149950, 1264945, 2299900, 2529890, 5059780, 6324725, 12649450, 25298900]

約数ペア:

[(1, 25298900), (2, 12649450), (4, 6324725), (5, 5059780), (10, 2529890), (11, 2299900), (20, 1264945), (22, 1149950), (25, 1011956), (44, 574975), (50, 505978), (55, 459980), (100, 252989), (109, 232100), (110, 229990), (211, 119900), (218, 116050), (220, 114995), (275, 91996), (422, 59950), (436, 58025), (545, 46420), (550, 45998), (844, 29975), (1055, 23980), (1090, 23210), (1100, 22999), (1199, 21100), (2110, 11990), (2180, 11605), (2321, 10900), (2398, 10550), (2725, 9284), (4220, 5995), (4642, 5450), (4796, 5275)]