31721984

素因数分解:

$2^9\times 7^1\times {\mathrm{53}}^1\times {\mathrm{167}}^1$

素因数の和:245

約数の個数: 80

約数和(自身を含む): 74245248

約数和(自身を除く): 42523264

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 53, 56, 64, 106, 112, 128, 167, 212, 224, 256, 334, 371, 424, 448, 512, 668, 742, 848, 896, 1169, 1336, 1484, 1696, 1792, 2338, 2672, 2968, 3392, 3584, 4676, 5344, 5936, 6784, 8851, 9352, 10688, 11872, 13568, 17702, 18704, 21376, 23744, 27136, 35404, 37408, 42752, 47488, 61957, 70808, 74816, 85504, 94976, 123914, 141616, 149632, 189952, 247828, 283232, 299264, 495656, 566464, 598528, 991312, 1132928, 1982624, 2265856, 3965248, 4531712, 7930496, 15860992, 31721984]

約数ペア:

[(1, 31721984), (2, 15860992), (4, 7930496), (7, 4531712), (8, 3965248), (14, 2265856), (16, 1982624), (28, 1132928), (32, 991312), (53, 598528), (56, 566464), (64, 495656), (106, 299264), (112, 283232), (128, 247828), (167, 189952), (212, 149632), (224, 141616), (256, 123914), (334, 94976), (371, 85504), (424, 74816), (448, 70808), (512, 61957), (668, 47488), (742, 42752), (848, 37408), (896, 35404), (1169, 27136), (1336, 23744), (1484, 21376), (1696, 18704), (1792, 17702), (2338, 13568), (2672, 11872), (2968, 10688), (3392, 9352), (3584, 8851), (4676, 6784), (5344, 5936)]