31791528

素因数分解:

$2^3\times 3^4\times {\mathrm{71}}^1\times {\mathrm{691}}^1$

素因数の和:780

約数の個数: 80

約数和(自身を含む): 90430560

約数和(自身を除く): 58639032

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 27, 36, 54, 71, 72, 81, 108, 142, 162, 213, 216, 284, 324, 426, 568, 639, 648, 691, 852, 1278, 1382, 1704, 1917, 2073, 2556, 2764, 3834, 4146, 5112, 5528, 5751, 6219, 7668, 8292, 11502, 12438, 15336, 16584, 18657, 23004, 24876, 37314, 46008, 49061, 49752, 55971, 74628, 98122, 111942, 147183, 149256, 196244, 223884, 294366, 392488, 441549, 447768, 588732, 883098, 1177464, 1324647, 1766196, 2649294, 3532392, 3973941, 5298588, 7947882, 10597176, 15895764, 31791528]

約数ペア:

[(1, 31791528), (2, 15895764), (3, 10597176), (4, 7947882), (6, 5298588), (8, 3973941), (9, 3532392), (12, 2649294), (18, 1766196), (24, 1324647), (27, 1177464), (36, 883098), (54, 588732), (71, 447768), (72, 441549), (81, 392488), (108, 294366), (142, 223884), (162, 196244), (213, 149256), (216, 147183), (284, 111942), (324, 98122), (426, 74628), (568, 55971), (639, 49752), (648, 49061), (691, 46008), (852, 37314), (1278, 24876), (1382, 23004), (1704, 18657), (1917, 16584), (2073, 15336), (2556, 12438), (2764, 11502), (3834, 8292), (4146, 7668), (5112, 6219), (5528, 5751)]