20210560

素因数分解:

$2^7\times 5^1\times {\mathrm{23}}^1\times {\mathrm{1373}}^1$

素因数の和:1415

約数の個数: 64

約数和(自身を含む): 50453280

約数和(自身を除く): 30242720

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 23, 32, 40, 46, 64, 80, 92, 115, 128, 160, 184, 230, 320, 368, 460, 640, 736, 920, 1373, 1472, 1840, 2746, 2944, 3680, 5492, 6865, 7360, 10984, 13730, 14720, 21968, 27460, 31579, 43936, 54920, 63158, 87872, 109840, 126316, 157895, 175744, 219680, 252632, 315790, 439360, 505264, 631580, 878720, 1010528, 1263160, 2021056, 2526320, 4042112, 5052640, 10105280, 20210560]

約数ペア:

[(1, 20210560), (2, 10105280), (4, 5052640), (5, 4042112), (8, 2526320), (10, 2021056), (16, 1263160), (20, 1010528), (23, 878720), (32, 631580), (40, 505264), (46, 439360), (64, 315790), (80, 252632), (92, 219680), (115, 175744), (128, 157895), (160, 126316), (184, 109840), (230, 87872), (320, 63158), (368, 54920), (460, 43936), (640, 31579), (736, 27460), (920, 21968), (1373, 14720), (1472, 13730), (1840, 10984), (2746, 7360), (2944, 6865), (3680, 5492)]