20770100

素因数分解:

$2^2\times 5^2\times {\mathrm{13}}^2\times {\mathrm{1229}}^1$

素因数の和:1269

約数の個数: 54

約数和(自身を含む): 48844530

約数和(自身を除く): 28074430

約数列:

[1, 2, 4, 5, 10, 13, 20, 25, 26, 50, 52, 65, 100, 130, 169, 260, 325, 338, 650, 676, 845, 1229, 1300, 1690, 2458, 3380, 4225, 4916, 6145, 8450, 12290, 15977, 16900, 24580, 30725, 31954, 61450, 63908, 79885, 122900, 159770, 207701, 319540, 399425, 415402, 798850, 830804, 1038505, 1597700, 2077010, 4154020, 5192525, 10385050, 20770100]

約数ペア:

[(1, 20770100), (2, 10385050), (4, 5192525), (5, 4154020), (10, 2077010), (13, 1597700), (20, 1038505), (25, 830804), (26, 798850), (50, 415402), (52, 399425), (65, 319540), (100, 207701), (130, 159770), (169, 122900), (260, 79885), (325, 63908), (338, 61450), (650, 31954), (676, 30725), (845, 24580), (1229, 16900), (1300, 15977), (1690, 12290), (2458, 8450), (3380, 6145), (4225, 4916)]