28556320

素因数分解:

$2^5\times 5^1\times {\mathrm{13}}^1\times {\mathrm{13729}}^1$

素因数の和:13757

約数の個数: 48

約数和(自身を含む): 72659160

約数和(自身を除く): 44102840

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, 2080, 13729, 27458, 54916, 68645, 109832, 137290, 178477, 219664, 274580, 356954, 439328, 549160, 713908, 892385, 1098320, 1427816, 1784770, 2196640, 2855632, 3569540, 5711264, 7139080, 14278160, 28556320]

約数ペア:

[(1, 28556320), (2, 14278160), (4, 7139080), (5, 5711264), (8, 3569540), (10, 2855632), (13, 2196640), (16, 1784770), (20, 1427816), (26, 1098320), (32, 892385), (40, 713908), (52, 549160), (65, 439328), (80, 356954), (104, 274580), (130, 219664), (160, 178477), (208, 137290), (260, 109832), (416, 68645), (520, 54916), (1040, 27458), (2080, 13729)]