19874944

素因数分解:

$2^7\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{157}}^1$

素因数の和:237

約数の個数: 64

約数和(自身を含む): 42546240

約数和(自身を除く): 22671296

約数列:

[1, 2, 4, 8, 16, 23, 32, 43, 46, 64, 86, 92, 128, 157, 172, 184, 314, 344, 368, 628, 688, 736, 989, 1256, 1376, 1472, 1978, 2512, 2752, 2944, 3611, 3956, 5024, 5504, 6751, 7222, 7912, 10048, 13502, 14444, 15824, 20096, 27004, 28888, 31648, 54008, 57776, 63296, 108016, 115552, 126592, 155273, 216032, 231104, 310546, 432064, 462208, 621092, 864128, 1242184, 2484368, 4968736, 9937472, 19874944]

約数ペア:

[(1, 19874944), (2, 9937472), (4, 4968736), (8, 2484368), (16, 1242184), (23, 864128), (32, 621092), (43, 462208), (46, 432064), (64, 310546), (86, 231104), (92, 216032), (128, 155273), (157, 126592), (172, 115552), (184, 108016), (314, 63296), (344, 57776), (368, 54008), (628, 31648), (688, 28888), (736, 27004), (989, 20096), (1256, 15824), (1376, 14444), (1472, 13502), (1978, 10048), (2512, 7912), (2752, 7222), (2944, 6751), (3611, 5504), (3956, 5024)]