261298260

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{76403}}^1$

素因数の和:76437

約数の個数: 72

約数和(自身を含む): 834331680

約数和(自身を除く): 573033420

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 19, 20, 30, 36, 38, 45, 57, 60, 76, 90, 95, 114, 171, 180, 190, 228, 285, 342, 380, 570, 684, 855, 1140, 1710, 3420, 76403, 152806, 229209, 305612, 382015, 458418, 687627, 764030, 916836, 1146045, 1375254, 1451657, 1528060, 2292090, 2750508, 2903314, 3438135, 4354971, 4584180, 5806628, 6876270, 7258285, 8709942, 13064913, 13752540, 14516570, 17419884, 21774855, 26129826, 29033140, 43549710, 52259652, 65324565, 87099420, 130649130, 261298260]

約数ペア:

[(1, 261298260), (2, 130649130), (3, 87099420), (4, 65324565), (5, 52259652), (6, 43549710), (9, 29033140), (10, 26129826), (12, 21774855), (15, 17419884), (18, 14516570), (19, 13752540), (20, 13064913), (30, 8709942), (36, 7258285), (38, 6876270), (45, 5806628), (57, 4584180), (60, 4354971), (76, 3438135), (90, 2903314), (95, 2750508), (114, 2292090), (171, 1528060), (180, 1451657), (190, 1375254), (228, 1146045), (285, 916836), (342, 764030), (380, 687627), (570, 458418), (684, 382015), (855, 305612), (1140, 229209), (1710, 152806), (3420, 76403)]