18649540

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{10247}}^1$

素因数の和:10276

約数の個数: 48

約数和(自身を含む): 48206592

約数和(自身を除く): 29557052

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 20, 26, 28, 35, 52, 65, 70, 91, 130, 140, 182, 260, 364, 455, 910, 1820, 10247, 20494, 40988, 51235, 71729, 102470, 133211, 143458, 204940, 266422, 286916, 358645, 532844, 666055, 717290, 932477, 1332110, 1434580, 1864954, 2664220, 3729908, 4662385, 9324770, 18649540]

約数ペア:

[(1, 18649540), (2, 9324770), (4, 4662385), (5, 3729908), (7, 2664220), (10, 1864954), (13, 1434580), (14, 1332110), (20, 932477), (26, 717290), (28, 666055), (35, 532844), (52, 358645), (65, 286916), (70, 266422), (91, 204940), (130, 143458), (140, 133211), (182, 102470), (260, 71729), (364, 51235), (455, 40988), (910, 20494), (1820, 10247)]