261574456

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{373}}^1\times {\mathrm{613}}^1$

素因数の和:1016

約数の個数: 64

約数和(自身を含む): 578682720

約数和(自身を除く): 317108264

約数列:

[1, 2, 4, 8, 11, 13, 22, 26, 44, 52, 88, 104, 143, 286, 373, 572, 613, 746, 1144, 1226, 1492, 2452, 2984, 4103, 4849, 4904, 6743, 7969, 8206, 9698, 13486, 15938, 16412, 19396, 26972, 31876, 32824, 38792, 53339, 53944, 63752, 87659, 106678, 175318, 213356, 228649, 350636, 426712, 457298, 701272, 914596, 1829192, 2515139, 2972437, 5030278, 5944874, 10060556, 11889748, 20121112, 23779496, 32696807, 65393614, 130787228, 261574456]

約数ペア:

[(1, 261574456), (2, 130787228), (4, 65393614), (8, 32696807), (11, 23779496), (13, 20121112), (22, 11889748), (26, 10060556), (44, 5944874), (52, 5030278), (88, 2972437), (104, 2515139), (143, 1829192), (286, 914596), (373, 701272), (572, 457298), (613, 426712), (746, 350636), (1144, 228649), (1226, 213356), (1492, 175318), (2452, 106678), (2984, 87659), (4103, 63752), (4849, 53944), (4904, 53339), (6743, 38792), (7969, 32824), (8206, 31876), (9698, 26972), (13486, 19396), (15938, 16412)]