81285420

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{113}}^1\times {\mathrm{631}}^1$

素因数の和:775

約数の個数: 96

約数和(自身を含む): 242081280

約数和(自身を除く): 160795860

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 19, 20, 30, 38, 57, 60, 76, 95, 113, 114, 190, 226, 228, 285, 339, 380, 452, 565, 570, 631, 678, 1130, 1140, 1262, 1356, 1695, 1893, 2147, 2260, 2524, 3155, 3390, 3786, 4294, 6310, 6441, 6780, 7572, 8588, 9465, 10735, 11989, 12620, 12882, 18930, 21470, 23978, 25764, 32205, 35967, 37860, 42940, 47956, 59945, 64410, 71303, 71934, 119890, 128820, 142606, 143868, 179835, 213909, 239780, 285212, 356515, 359670, 427818, 713030, 719340, 855636, 1069545, 1354757, 1426060, 2139090, 2709514, 4064271, 4278180, 5419028, 6773785, 8128542, 13547570, 16257084, 20321355, 27095140, 40642710, 81285420]

約数ペア:

[(1, 81285420), (2, 40642710), (3, 27095140), (4, 20321355), (5, 16257084), (6, 13547570), (10, 8128542), (12, 6773785), (15, 5419028), (19, 4278180), (20, 4064271), (30, 2709514), (38, 2139090), (57, 1426060), (60, 1354757), (76, 1069545), (95, 855636), (113, 719340), (114, 713030), (190, 427818), (226, 359670), (228, 356515), (285, 285212), (339, 239780), (380, 213909), (452, 179835), (565, 143868), (570, 142606), (631, 128820), (678, 119890), (1130, 71934), (1140, 71303), (1262, 64410), (1356, 59945), (1695, 47956), (1893, 42940), (2147, 37860), (2260, 35967), (2524, 32205), (3155, 25764), (3390, 23978), (3786, 21470), (4294, 18930), (6310, 12882), (6441, 12620), (6780, 11989), (7572, 10735), (8588, 9465)]