25440430

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{257}}^1\times {\mathrm{521}}^1$

素因数の和:804

約数の個数: 32

約数和(自身を含む): 48483360

約数和(自身を除く): 23042930

約数列:

[1, 2, 5, 10, 19, 38, 95, 190, 257, 514, 521, 1042, 1285, 2570, 2605, 4883, 5210, 9766, 9899, 19798, 24415, 48830, 49495, 98990, 133897, 267794, 669485, 1338970, 2544043, 5088086, 12720215, 25440430]

約数ペア:

[(1, 25440430), (2, 12720215), (5, 5088086), (10, 2544043), (19, 1338970), (38, 669485), (95, 267794), (190, 133897), (257, 98990), (514, 49495), (521, 48830), (1042, 24415), (1285, 19798), (2570, 9899), (2605, 9766), (4883, 5210)]