16687880

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{97}}^1$

素因数の和:159

約数の個数: 128

約数和(自身を含む): 45722880

約数和(自身を除く): 29035000

約数列:

[1, 2, 4, 5, 8, 10, 11, 17, 20, 22, 23, 34, 40, 44, 46, 55, 68, 85, 88, 92, 97, 110, 115, 136, 170, 184, 187, 194, 220, 230, 253, 340, 374, 388, 391, 440, 460, 485, 506, 680, 748, 776, 782, 920, 935, 970, 1012, 1067, 1265, 1496, 1564, 1649, 1870, 1940, 1955, 2024, 2134, 2231, 2530, 3128, 3298, 3740, 3880, 3910, 4268, 4301, 4462, 5060, 5335, 6596, 7480, 7820, 8245, 8536, 8602, 8924, 10120, 10670, 11155, 13192, 15640, 16490, 17204, 17848, 18139, 21340, 21505, 22310, 24541, 32980, 34408, 36278, 37927, 42680, 43010, 44620, 49082, 65960, 72556, 75854, 86020, 89240, 90695, 98164, 122705, 145112, 151708, 172040, 181390, 189635, 196328, 245410, 303416, 362780, 379270, 417197, 490820, 725560, 758540, 834394, 981640, 1517080, 1668788, 2085985, 3337576, 4171970, 8343940, 16687880]

約数ペア:

[(1, 16687880), (2, 8343940), (4, 4171970), (5, 3337576), (8, 2085985), (10, 1668788), (11, 1517080), (17, 981640), (20, 834394), (22, 758540), (23, 725560), (34, 490820), (40, 417197), (44, 379270), (46, 362780), (55, 303416), (68, 245410), (85, 196328), (88, 189635), (92, 181390), (97, 172040), (110, 151708), (115, 145112), (136, 122705), (170, 98164), (184, 90695), (187, 89240), (194, 86020), (220, 75854), (230, 72556), (253, 65960), (340, 49082), (374, 44620), (388, 43010), (391, 42680), (440, 37927), (460, 36278), (485, 34408), (506, 32980), (680, 24541), (748, 22310), (776, 21505), (782, 21340), (920, 18139), (935, 17848), (970, 17204), (1012, 16490), (1067, 15640), (1265, 13192), (1496, 11155), (1564, 10670), (1649, 10120), (1870, 8924), (1940, 8602), (1955, 8536), (2024, 8245), (2134, 7820), (2231, 7480), (2530, 6596), (3128, 5335), (3298, 5060), (3740, 4462), (3880, 4301), (3910, 4268)]