20288320

素因数分解:

$2^6\times 5^1\times {\mathrm{13}}^1\times {\mathrm{4877}}^1$

素因数の和:4907

約数の個数: 56

約数和(自身を含む): 52038504

約数和(自身を除く): 31750184

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 64, 65, 80, 104, 130, 160, 208, 260, 320, 416, 520, 832, 1040, 2080, 4160, 4877, 9754, 19508, 24385, 39016, 48770, 63401, 78032, 97540, 126802, 156064, 195080, 253604, 312128, 317005, 390160, 507208, 634010, 780320, 1014416, 1268020, 1560640, 2028832, 2536040, 4057664, 5072080, 10144160, 20288320]

約数ペア:

[(1, 20288320), (2, 10144160), (4, 5072080), (5, 4057664), (8, 2536040), (10, 2028832), (13, 1560640), (16, 1268020), (20, 1014416), (26, 780320), (32, 634010), (40, 507208), (52, 390160), (64, 317005), (65, 312128), (80, 253604), (104, 195080), (130, 156064), (160, 126802), (208, 97540), (260, 78032), (320, 63401), (416, 48770), (520, 39016), (832, 24385), (1040, 19508), (2080, 9754), (4160, 4877)]