255546640

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{103043}}^1$

素因数の和:103087

約数の個数: 40

約数和(自身を含む): 613317888

約数和(自身を除く): 357771248

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 80, 124, 155, 248, 310, 496, 620, 1240, 2480, 103043, 206086, 412172, 515215, 824344, 1030430, 1648688, 2060860, 3194333, 4121720, 6388666, 8243440, 12777332, 15971665, 25554664, 31943330, 51109328, 63886660, 127773320, 255546640]

約数ペア:

[(1, 255546640), (2, 127773320), (4, 63886660), (5, 51109328), (8, 31943330), (10, 25554664), (16, 15971665), (20, 12777332), (31, 8243440), (40, 6388666), (62, 4121720), (80, 3194333), (124, 2060860), (155, 1648688), (248, 1030430), (310, 824344), (496, 515215), (620, 412172), (1240, 206086), (2480, 103043)]