219858440

素因数分解:

$2^3\times 5^1\times {\mathrm{37}}^1\times {\mathrm{149}}^1\times {\mathrm{997}}^1$

素因数の和:1194

約数の個数: 64

約数和(自身を含む): 511974000

約数和(自身を除く): 292115560

約数列:

[1, 2, 4, 5, 8, 10, 20, 37, 40, 74, 148, 149, 185, 296, 298, 370, 596, 740, 745, 997, 1192, 1480, 1490, 1994, 2980, 3988, 4985, 5513, 5960, 7976, 9970, 11026, 19940, 22052, 27565, 36889, 39880, 44104, 55130, 73778, 110260, 147556, 148553, 184445, 220520, 295112, 297106, 368890, 594212, 737780, 742765, 1188424, 1475560, 1485530, 2971060, 5496461, 5942120, 10992922, 21985844, 27482305, 43971688, 54964610, 109929220, 219858440]

約数ペア:

[(1, 219858440), (2, 109929220), (4, 54964610), (5, 43971688), (8, 27482305), (10, 21985844), (20, 10992922), (37, 5942120), (40, 5496461), (74, 2971060), (148, 1485530), (149, 1475560), (185, 1188424), (296, 742765), (298, 737780), (370, 594212), (596, 368890), (740, 297106), (745, 295112), (997, 220520), (1192, 184445), (1480, 148553), (1490, 147556), (1994, 110260), (2980, 73778), (3988, 55130), (4985, 44104), (5513, 39880), (5960, 36889), (7976, 27565), (9970, 22052), (11026, 19940)]