217508710

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{149}}^1\times {\mathrm{277}}^1$

素因数の和:481

約数の個数: 64

約数和(自身を含む): 432345600

約数和(自身を除く): 214836890

約数列:

[1, 2, 5, 10, 17, 31, 34, 62, 85, 149, 155, 170, 277, 298, 310, 527, 554, 745, 1054, 1385, 1490, 2533, 2635, 2770, 4619, 4709, 5066, 5270, 8587, 9238, 9418, 12665, 17174, 23095, 23545, 25330, 41273, 42935, 46190, 47090, 78523, 82546, 85870, 145979, 157046, 206365, 291958, 392615, 412730, 701641, 729895, 785230, 1279463, 1403282, 1459790, 2558926, 3508205, 6397315, 7016410, 12794630, 21750871, 43501742, 108754355, 217508710]

約数ペア:

[(1, 217508710), (2, 108754355), (5, 43501742), (10, 21750871), (17, 12794630), (31, 7016410), (34, 6397315), (62, 3508205), (85, 2558926), (149, 1459790), (155, 1403282), (170, 1279463), (277, 785230), (298, 729895), (310, 701641), (527, 412730), (554, 392615), (745, 291958), (1054, 206365), (1385, 157046), (1490, 145979), (2533, 85870), (2635, 82546), (2770, 78523), (4619, 47090), (4709, 46190), (5066, 42935), (5270, 41273), (8587, 25330), (9238, 23545), (9418, 23095), (12665, 17174)]