71998720

素因数分解:

$2^8\times 5^1\times {\mathrm{56249}}^1$

素因数の和:56270

約数の個数: 36

約数和(自身を含む): 172462500

約数和(自身を除く): 100463780

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 640, 1280, 56249, 112498, 224996, 281245, 449992, 562490, 899984, 1124980, 1799968, 2249960, 3599936, 4499920, 7199872, 8999840, 14399744, 17999680, 35999360, 71998720]

約数ペア:

[(1, 71998720), (2, 35999360), (4, 17999680), (5, 14399744), (8, 8999840), (10, 7199872), (16, 4499920), (20, 3599936), (32, 2249960), (40, 1799968), (64, 1124980), (80, 899984), (128, 562490), (160, 449992), (256, 281245), (320, 224996), (640, 112498), (1280, 56249)]