28243930

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{19751}}^1$

素因数の和:19782

約数の個数: 32

約数和(自身を含む): 59730048

約数和(自身を除く): 31486118

約数列:

[1, 2, 5, 10, 11, 13, 22, 26, 55, 65, 110, 130, 143, 286, 715, 1430, 19751, 39502, 98755, 197510, 217261, 256763, 434522, 513526, 1086305, 1283815, 2172610, 2567630, 2824393, 5648786, 14121965, 28243930]

約数ペア:

[(1, 28243930), (2, 14121965), (5, 5648786), (10, 2824393), (11, 2567630), (13, 2172610), (22, 1283815), (26, 1086305), (55, 513526), (65, 434522), (110, 256763), (130, 217261), (143, 197510), (286, 98755), (715, 39502), (1430, 19751)]