1903220

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{211}}^1$

素因数の和:272

約数の個数: 48

約数和(自身を含む): 4487616

約数和(自身を除く): 2584396

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 41, 44, 55, 82, 110, 164, 205, 211, 220, 410, 422, 451, 820, 844, 902, 1055, 1804, 2110, 2255, 2321, 4220, 4510, 4642, 8651, 9020, 9284, 11605, 17302, 23210, 34604, 43255, 46420, 86510, 95161, 173020, 190322, 380644, 475805, 951610, 1903220]

約数ペア:

[(1, 1903220), (2, 951610), (4, 475805), (5, 380644), (10, 190322), (11, 173020), (20, 95161), (22, 86510), (41, 46420), (44, 43255), (55, 34604), (82, 23210), (110, 17302), (164, 11605), (205, 9284), (211, 9020), (220, 8651), (410, 4642), (422, 4510), (451, 4220), (820, 2321), (844, 2255), (902, 2110), (1055, 1804)]