28017720

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{223}}^1\times {\mathrm{349}}^1$

素因数の和:589

約数の個数: 96

約数和(自身を含む): 91728000

約数和(自身を除く): 63710280

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 30, 36, 40, 45, 60, 72, 90, 120, 180, 223, 349, 360, 446, 669, 698, 892, 1047, 1115, 1338, 1396, 1745, 1784, 2007, 2094, 2230, 2676, 2792, 3141, 3345, 3490, 4014, 4188, 4460, 5235, 5352, 6282, 6690, 6980, 8028, 8376, 8920, 10035, 10470, 12564, 13380, 13960, 15705, 16056, 20070, 20940, 25128, 26760, 31410, 40140, 41880, 62820, 77827, 80280, 125640, 155654, 233481, 311308, 389135, 466962, 622616, 700443, 778270, 933924, 1167405, 1400886, 1556540, 1867848, 2334810, 2801772, 3113080, 3502215, 4669620, 5603544, 7004430, 9339240, 14008860, 28017720]

約数ペア:

[(1, 28017720), (2, 14008860), (3, 9339240), (4, 7004430), (5, 5603544), (6, 4669620), (8, 3502215), (9, 3113080), (10, 2801772), (12, 2334810), (15, 1867848), (18, 1556540), (20, 1400886), (24, 1167405), (30, 933924), (36, 778270), (40, 700443), (45, 622616), (60, 466962), (72, 389135), (90, 311308), (120, 233481), (180, 155654), (223, 125640), (349, 80280), (360, 77827), (446, 62820), (669, 41880), (698, 40140), (892, 31410), (1047, 26760), (1115, 25128), (1338, 20940), (1396, 20070), (1745, 16056), (1784, 15705), (2007, 13960), (2094, 13380), (2230, 12564), (2676, 10470), (2792, 10035), (3141, 8920), (3345, 8376), (3490, 8028), (4014, 6980), (4188, 6690), (4460, 6282), (5235, 5352)]