20663776

素因数分解:

$2^5\times 7^1\times {\mathrm{29}}^1\times {\mathrm{3181}}^1$

素因数の和:3227

約数の個数: 48

約数和(自身を含む): 48111840

約数和(自身を除く): 27448064

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 29, 32, 56, 58, 112, 116, 203, 224, 232, 406, 464, 812, 928, 1624, 3181, 3248, 6362, 6496, 12724, 22267, 25448, 44534, 50896, 89068, 92249, 101792, 178136, 184498, 356272, 368996, 645743, 712544, 737992, 1291486, 1475984, 2582972, 2951968, 5165944, 10331888, 20663776]

約数ペア:

[(1, 20663776), (2, 10331888), (4, 5165944), (7, 2951968), (8, 2582972), (14, 1475984), (16, 1291486), (28, 737992), (29, 712544), (32, 645743), (56, 368996), (58, 356272), (112, 184498), (116, 178136), (203, 101792), (224, 92249), (232, 89068), (406, 50896), (464, 44534), (812, 25448), (928, 22267), (1624, 12724), (3181, 6496), (3248, 6362)]