2556320

素因数分解:

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

素因数の和:1257

約数の個数: 48

約数和(自身を含む): 6509160

約数和(自身を除く): 3952840

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 65, 80, 104, 130, 160, 208, 260, 416, 520, 1040, 1229, 2080, 2458, 4916, 6145, 9832, 12290, 15977, 19664, 24580, 31954, 39328, 49160, 63908, 79885, 98320, 127816, 159770, 196640, 255632, 319540, 511264, 639080, 1278160, 2556320]

約数ペア:

[(1, 2556320), (2, 1278160), (4, 639080), (5, 511264), (8, 319540), (10, 255632), (13, 196640), (16, 159770), (20, 127816), (26, 98320), (32, 79885), (40, 63908), (52, 49160), (65, 39328), (80, 31954), (104, 24580), (130, 19664), (160, 15977), (208, 12290), (260, 9832), (416, 6145), (520, 4916), (1040, 2458), (1229, 2080)]