19815040

素因数分解:

$2^7\times 5^1\times 7^1\times {\mathrm{4423}}^1$

素因数の和:4449

約数の個数: 64

約数和(自身を含む): 54149760

約数和(自身を除く): 34334720

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 64, 70, 80, 112, 128, 140, 160, 224, 280, 320, 448, 560, 640, 896, 1120, 2240, 4423, 4480, 8846, 17692, 22115, 30961, 35384, 44230, 61922, 70768, 88460, 123844, 141536, 154805, 176920, 247688, 283072, 309610, 353840, 495376, 566144, 619220, 707680, 990752, 1238440, 1415360, 1981504, 2476880, 2830720, 3963008, 4953760, 9907520, 19815040]

約数ペア:

[(1, 19815040), (2, 9907520), (4, 4953760), (5, 3963008), (7, 2830720), (8, 2476880), (10, 1981504), (14, 1415360), (16, 1238440), (20, 990752), (28, 707680), (32, 619220), (35, 566144), (40, 495376), (56, 353840), (64, 309610), (70, 283072), (80, 247688), (112, 176920), (128, 154805), (140, 141536), (160, 123844), (224, 88460), (280, 70768), (320, 61922), (448, 44230), (560, 35384), (640, 30961), (896, 22115), (1120, 17692), (2240, 8846), (4423, 4480)]