20792803408

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{673}}^1\times {\mathrm{148537}}^1$

素因数の和:149231

約数の個数: 40

約数和(自身を含む): 43449741608

約数和(自身を除く): 22656938200

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 673, 1346, 2692, 5384, 8749, 10768, 17498, 34996, 69992, 139984, 148537, 297074, 594148, 1188296, 1930981, 2376592, 3861962, 7723924, 15447848, 30895696, 99965401, 199930802, 399861604, 799723208, 1299550213, 1599446416, 2599100426, 5198200852, 10396401704, 20792803408]

約数ペア:

[(1, 20792803408), (2, 10396401704), (4, 5198200852), (8, 2599100426), (13, 1599446416), (16, 1299550213), (26, 799723208), (52, 399861604), (104, 199930802), (208, 99965401), (673, 30895696), (1346, 15447848), (2692, 7723924), (5384, 3861962), (8749, 2376592), (10768, 1930981), (17498, 1188296), (34996, 594148), (69992, 297074), (139984, 148537)]