16581280

素因数分解:

$2^5\times 5^1\times {\mathrm{31}}^1\times {\mathrm{3343}}^1$

素因数の和:3389

約数の個数: 48

約数和(自身を含む): 40449024

約数和(自身を除く): 23867744

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 80, 124, 155, 160, 248, 310, 496, 620, 992, 1240, 2480, 3343, 4960, 6686, 13372, 16715, 26744, 33430, 53488, 66860, 103633, 106976, 133720, 207266, 267440, 414532, 518165, 534880, 829064, 1036330, 1658128, 2072660, 3316256, 4145320, 8290640, 16581280]

約数ペア:

[(1, 16581280), (2, 8290640), (4, 4145320), (5, 3316256), (8, 2072660), (10, 1658128), (16, 1036330), (20, 829064), (31, 534880), (32, 518165), (40, 414532), (62, 267440), (80, 207266), (124, 133720), (155, 106976), (160, 103633), (248, 66860), (310, 53488), (496, 33430), (620, 26744), (992, 16715), (1240, 13372), (2480, 6686), (3343, 4960)]