28800980

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^2\times {\mathrm{8521}}^1$

素因数の和:8556

約数の個数: 36

約数和(自身を含む): 65500092

約数和(自身を除く): 36699112

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 169, 260, 338, 676, 845, 1690, 3380, 8521, 17042, 34084, 42605, 85210, 110773, 170420, 221546, 443092, 553865, 1107730, 1440049, 2215460, 2880098, 5760196, 7200245, 14400490, 28800980]

約数ペア:

[(1, 28800980), (2, 14400490), (4, 7200245), (5, 5760196), (10, 2880098), (13, 2215460), (20, 1440049), (26, 1107730), (52, 553865), (65, 443092), (130, 221546), (169, 170420), (260, 110773), (338, 85210), (676, 42605), (845, 34084), (1690, 17042), (3380, 8521)]