31253456

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{131}}^1$

素因数の和:220

約数の個数: 80

約数和(自身を含む): 69662208

約数和(自身を除く): 38408752

約数列:

[1, 2, 4, 8, 13, 16, 26, 31, 37, 52, 62, 74, 104, 124, 131, 148, 208, 248, 262, 296, 403, 481, 496, 524, 592, 806, 962, 1048, 1147, 1612, 1703, 1924, 2096, 2294, 3224, 3406, 3848, 4061, 4588, 4847, 6448, 6812, 7696, 8122, 9176, 9694, 13624, 14911, 16244, 18352, 19388, 27248, 29822, 32488, 38776, 52793, 59644, 63011, 64976, 77552, 105586, 119288, 126022, 150257, 211172, 238576, 252044, 300514, 422344, 504088, 601028, 844688, 1008176, 1202056, 1953341, 2404112, 3906682, 7813364, 15626728, 31253456]

約数ペア:

[(1, 31253456), (2, 15626728), (4, 7813364), (8, 3906682), (13, 2404112), (16, 1953341), (26, 1202056), (31, 1008176), (37, 844688), (52, 601028), (62, 504088), (74, 422344), (104, 300514), (124, 252044), (131, 238576), (148, 211172), (208, 150257), (248, 126022), (262, 119288), (296, 105586), (403, 77552), (481, 64976), (496, 63011), (524, 59644), (592, 52793), (806, 38776), (962, 32488), (1048, 29822), (1147, 27248), (1612, 19388), (1703, 18352), (1924, 16244), (2096, 14911), (2294, 13624), (3224, 9694), (3406, 9176), (3848, 8122), (4061, 7696), (4588, 6812), (4847, 6448)]