205517488

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{149}}^1\times {\mathrm{461}}^1$

素因数の和:646

約数の個数: 80

約数和(自身を含む): 464032800

約数和(自身を除く): 258515312

約数列:

[1, 2, 4, 8, 11, 16, 17, 22, 34, 44, 68, 88, 136, 149, 176, 187, 272, 298, 374, 461, 596, 748, 922, 1192, 1496, 1639, 1844, 2384, 2533, 2992, 3278, 3688, 5066, 5071, 6556, 7376, 7837, 10132, 10142, 13112, 15674, 20264, 20284, 26224, 27863, 31348, 40528, 40568, 55726, 62696, 68689, 81136, 86207, 111452, 125392, 137378, 172414, 222904, 274756, 344828, 445808, 549512, 689656, 755579, 1099024, 1167713, 1379312, 1511158, 2335426, 3022316, 4670852, 6044632, 9341704, 12089264, 12844843, 18683408, 25689686, 51379372, 102758744, 205517488]

約数ペア:

[(1, 205517488), (2, 102758744), (4, 51379372), (8, 25689686), (11, 18683408), (16, 12844843), (17, 12089264), (22, 9341704), (34, 6044632), (44, 4670852), (68, 3022316), (88, 2335426), (136, 1511158), (149, 1379312), (176, 1167713), (187, 1099024), (272, 755579), (298, 689656), (374, 549512), (461, 445808), (596, 344828), (748, 274756), (922, 222904), (1192, 172414), (1496, 137378), (1639, 125392), (1844, 111452), (2384, 86207), (2533, 81136), (2992, 68689), (3278, 62696), (3688, 55726), (5066, 40568), (5071, 40528), (6556, 31348), (7376, 27863), (7837, 26224), (10132, 20284), (10142, 20264), (13112, 15674)]