178325308

素因数分解:

$2^2\times 7^2\times {\mathrm{17}}^1\times {\mathrm{109}}^1\times {\mathrm{491}}^1$

素因数の和:635

約数の個数: 72

約数和(自身を含む): 388689840

約数和(自身を除く): 210364532

約数列:

[1, 2, 4, 7, 14, 17, 28, 34, 49, 68, 98, 109, 119, 196, 218, 238, 436, 476, 491, 763, 833, 982, 1526, 1666, 1853, 1964, 3052, 3332, 3437, 3706, 5341, 6874, 7412, 8347, 10682, 12971, 13748, 16694, 21364, 24059, 25942, 33388, 48118, 51884, 53519, 58429, 90797, 96236, 107038, 116858, 181594, 214076, 233716, 363188, 374633, 409003, 749266, 818006, 909823, 1498532, 1636012, 1819646, 2622431, 3639292, 5244862, 6368761, 10489724, 12737522, 25475044, 44581327, 89162654, 178325308]

約数ペア:

[(1, 178325308), (2, 89162654), (4, 44581327), (7, 25475044), (14, 12737522), (17, 10489724), (28, 6368761), (34, 5244862), (49, 3639292), (68, 2622431), (98, 1819646), (109, 1636012), (119, 1498532), (196, 909823), (218, 818006), (238, 749266), (436, 409003), (476, 374633), (491, 363188), (763, 233716), (833, 214076), (982, 181594), (1526, 116858), (1666, 107038), (1853, 96236), (1964, 90797), (3052, 58429), (3332, 53519), (3437, 51884), (3706, 48118), (5341, 33388), (6874, 25942), (7412, 24059), (8347, 21364), (10682, 16694), (12971, 13748)]