390742856

素因数分解:

$2^3\times 7^3\times {\mathrm{157}}^1\times {\mathrm{907}}^1$

素因数の和:1091

約数の個数: 64

約数和(自身を含む): 860784000

約数和(自身を除く): 470041144

約数列:

[1, 2, 4, 7, 8, 14, 28, 49, 56, 98, 157, 196, 314, 343, 392, 628, 686, 907, 1099, 1256, 1372, 1814, 2198, 2744, 3628, 4396, 6349, 7256, 7693, 8792, 12698, 15386, 25396, 30772, 44443, 50792, 53851, 61544, 88886, 107702, 142399, 177772, 215404, 284798, 311101, 355544, 430808, 569596, 622202, 996793, 1139192, 1244404, 1993586, 2488808, 3987172, 6977551, 7974344, 13955102, 27910204, 48842857, 55820408, 97685714, 195371428, 390742856]

約数ペア:

[(1, 390742856), (2, 195371428), (4, 97685714), (7, 55820408), (8, 48842857), (14, 27910204), (28, 13955102), (49, 7974344), (56, 6977551), (98, 3987172), (157, 2488808), (196, 1993586), (314, 1244404), (343, 1139192), (392, 996793), (628, 622202), (686, 569596), (907, 430808), (1099, 355544), (1256, 311101), (1372, 284798), (1814, 215404), (2198, 177772), (2744, 142399), (3628, 107702), (4396, 88886), (6349, 61544), (7256, 53851), (7693, 50792), (8792, 44443), (12698, 30772), (15386, 25396)]