20647770

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{4813}}^1$

素因数の和:4847

約数の個数: 64

約数和(自身を含む): 58230144

約数和(自身を除く): 37582374

約数列:

[1, 2, 3, 5, 6, 10, 11, 13, 15, 22, 26, 30, 33, 39, 55, 65, 66, 78, 110, 130, 143, 165, 195, 286, 330, 390, 429, 715, 858, 1430, 2145, 4290, 4813, 9626, 14439, 24065, 28878, 48130, 52943, 62569, 72195, 105886, 125138, 144390, 158829, 187707, 264715, 312845, 317658, 375414, 529430, 625690, 688259, 794145, 938535, 1376518, 1588290, 1877070, 2064777, 3441295, 4129554, 6882590, 10323885, 20647770]

約数ペア:

[(1, 20647770), (2, 10323885), (3, 6882590), (5, 4129554), (6, 3441295), (10, 2064777), (11, 1877070), (13, 1588290), (15, 1376518), (22, 938535), (26, 794145), (30, 688259), (33, 625690), (39, 529430), (55, 375414), (65, 317658), (66, 312845), (78, 264715), (110, 187707), (130, 158829), (143, 144390), (165, 125138), (195, 105886), (286, 72195), (330, 62569), (390, 52943), (429, 48130), (715, 28878), (858, 24065), (1430, 14439), (2145, 9626), (4290, 4813)]