28353280

素因数分解:

$2^8\times 5^1\times {\mathrm{17}}^1\times {\mathrm{1303}}^1$

素因数の和:1341

約数の個数: 72

約数和(自身を含む): 71965152

約数和(自身を除く): 43611872

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 32, 34, 40, 64, 68, 80, 85, 128, 136, 160, 170, 256, 272, 320, 340, 544, 640, 680, 1088, 1280, 1303, 1360, 2176, 2606, 2720, 4352, 5212, 5440, 6515, 10424, 10880, 13030, 20848, 21760, 22151, 26060, 41696, 44302, 52120, 83392, 88604, 104240, 110755, 166784, 177208, 208480, 221510, 333568, 354416, 416960, 443020, 708832, 833920, 886040, 1417664, 1667840, 1772080, 2835328, 3544160, 5670656, 7088320, 14176640, 28353280]

約数ペア:

[(1, 28353280), (2, 14176640), (4, 7088320), (5, 5670656), (8, 3544160), (10, 2835328), (16, 1772080), (17, 1667840), (20, 1417664), (32, 886040), (34, 833920), (40, 708832), (64, 443020), (68, 416960), (80, 354416), (85, 333568), (128, 221510), (136, 208480), (160, 177208), (170, 166784), (256, 110755), (272, 104240), (320, 88604), (340, 83392), (544, 52120), (640, 44302), (680, 41696), (1088, 26060), (1280, 22151), (1303, 21760), (1360, 20848), (2176, 13030), (2606, 10880), (2720, 10424), (4352, 6515), (5212, 5440)]