206816560

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{241}}^1\times {\mathrm{631}}^1$

素因数の和:902

約数の個数: 80

約数和(自身を含む): 512056512

約数和(自身を除く): 305239952

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 34, 40, 68, 80, 85, 136, 170, 241, 272, 340, 482, 631, 680, 964, 1205, 1262, 1360, 1928, 2410, 2524, 3155, 3856, 4097, 4820, 5048, 6310, 8194, 9640, 10096, 10727, 12620, 16388, 19280, 20485, 21454, 25240, 32776, 40970, 42908, 50480, 53635, 65552, 81940, 85816, 107270, 152071, 163880, 171632, 214540, 304142, 327760, 429080, 608284, 760355, 858160, 1216568, 1520710, 2433136, 2585207, 3041420, 5170414, 6082840, 10340828, 12165680, 12926035, 20681656, 25852070, 41363312, 51704140, 103408280, 206816560]

約数ペア:

[(1, 206816560), (2, 103408280), (4, 51704140), (5, 41363312), (8, 25852070), (10, 20681656), (16, 12926035), (17, 12165680), (20, 10340828), (34, 6082840), (40, 5170414), (68, 3041420), (80, 2585207), (85, 2433136), (136, 1520710), (170, 1216568), (241, 858160), (272, 760355), (340, 608284), (482, 429080), (631, 327760), (680, 304142), (964, 214540), (1205, 171632), (1262, 163880), (1360, 152071), (1928, 107270), (2410, 85816), (2524, 81940), (3155, 65552), (3856, 53635), (4097, 50480), (4820, 42908), (5048, 40970), (6310, 32776), (8194, 25240), (9640, 21454), (10096, 20485), (10727, 19280), (12620, 16388)]