55471900

素因数分解:

$2^2\times 5^2\times {\mathrm{11}}^1\times {\mathrm{211}}^1\times {\mathrm{239}}^1$

素因数の和:475

約数の個数: 72

約数和(自身を含む): 132491520

約数和(自身を除く): 77019620

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 25, 44, 50, 55, 100, 110, 211, 220, 239, 275, 422, 478, 550, 844, 956, 1055, 1100, 1195, 2110, 2321, 2390, 2629, 4220, 4642, 4780, 5258, 5275, 5975, 9284, 10516, 10550, 11605, 11950, 13145, 21100, 23210, 23900, 26290, 46420, 50429, 52580, 58025, 65725, 100858, 116050, 131450, 201716, 232100, 252145, 262900, 504290, 554719, 1008580, 1109438, 1260725, 2218876, 2521450, 2773595, 5042900, 5547190, 11094380, 13867975, 27735950, 55471900]

約数ペア:

[(1, 55471900), (2, 27735950), (4, 13867975), (5, 11094380), (10, 5547190), (11, 5042900), (20, 2773595), (22, 2521450), (25, 2218876), (44, 1260725), (50, 1109438), (55, 1008580), (100, 554719), (110, 504290), (211, 262900), (220, 252145), (239, 232100), (275, 201716), (422, 131450), (478, 116050), (550, 100858), (844, 65725), (956, 58025), (1055, 52580), (1100, 50429), (1195, 46420), (2110, 26290), (2321, 23900), (2390, 23210), (2629, 21100), (4220, 13145), (4642, 11950), (4780, 11605), (5258, 10550), (5275, 10516), (5975, 9284)]