19813120

素因数分解:

$2^8\times 5^1\times {\mathrm{23}}^1\times {\mathrm{673}}^1$

素因数の和:717

約数の個数: 72

約数和(自身を含む): 49595616

約数和(自身を除く): 29782496

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 23, 32, 40, 46, 64, 80, 92, 115, 128, 160, 184, 230, 256, 320, 368, 460, 640, 673, 736, 920, 1280, 1346, 1472, 1840, 2692, 2944, 3365, 3680, 5384, 5888, 6730, 7360, 10768, 13460, 14720, 15479, 21536, 26920, 29440, 30958, 43072, 53840, 61916, 77395, 86144, 107680, 123832, 154790, 172288, 215360, 247664, 309580, 430720, 495328, 619160, 861440, 990656, 1238320, 1981312, 2476640, 3962624, 4953280, 9906560, 19813120]

約数ペア:

[(1, 19813120), (2, 9906560), (4, 4953280), (5, 3962624), (8, 2476640), (10, 1981312), (16, 1238320), (20, 990656), (23, 861440), (32, 619160), (40, 495328), (46, 430720), (64, 309580), (80, 247664), (92, 215360), (115, 172288), (128, 154790), (160, 123832), (184, 107680), (230, 86144), (256, 77395), (320, 61916), (368, 53840), (460, 43072), (640, 30958), (673, 29440), (736, 26920), (920, 21536), (1280, 15479), (1346, 14720), (1472, 13460), (1840, 10768), (2692, 7360), (2944, 6730), (3365, 5888), (3680, 5384)]