31468255

素因数分解:

$5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{97}}^1$

素因数の和:176

約数の個数: 64

約数和(自身を含む): 50577408

約数和(自身を除く): 19109153

約数列:

[1, 5, 7, 13, 23, 31, 35, 65, 91, 97, 115, 155, 161, 217, 299, 403, 455, 485, 679, 713, 805, 1085, 1261, 1495, 2015, 2093, 2231, 2821, 3007, 3395, 3565, 4991, 6305, 8827, 9269, 10465, 11155, 14105, 15035, 15617, 21049, 24955, 29003, 39091, 44135, 46345, 64883, 69161, 78085, 105245, 145015, 195455, 203021, 273637, 324415, 345805, 484127, 899093, 1015105, 1368185, 2420635, 4495465, 6293651, 31468255]

約数ペア:

[(1, 31468255), (5, 6293651), (7, 4495465), (13, 2420635), (23, 1368185), (31, 1015105), (35, 899093), (65, 484127), (91, 345805), (97, 324415), (115, 273637), (155, 203021), (161, 195455), (217, 145015), (299, 105245), (403, 78085), (455, 69161), (485, 64883), (679, 46345), (713, 44135), (805, 39091), (1085, 29003), (1261, 24955), (1495, 21049), (2015, 15617), (2093, 15035), (2231, 14105), (2821, 11155), (3007, 10465), (3395, 9269), (3565, 8827), (4991, 6305)]