39680

素因数分解:

$2^8\times 5^1\times {\mathrm{31}}^1$

素因数の和:52

約数の個数: 36

約数和(自身を含む): 98112

約数和(自身を除く): 58432

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 64, 80, 124, 128, 155, 160, 248, 256, 310, 320, 496, 620, 640, 992, 1240, 1280, 1984, 2480, 3968, 4960, 7936, 9920, 19840, 39680]

約数ペア:

[(1, 39680), (2, 19840), (4, 9920), (5, 7936), (8, 4960), (10, 3968), (16, 2480), (20, 1984), (31, 1280), (32, 1240), (40, 992), (62, 640), (64, 620), (80, 496), (124, 320), (128, 310), (155, 256), (160, 248)]