161388888

素因数分解:

$2^3\times 3^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{109}}^1\times {\mathrm{191}}^1$

素因数の和:345

約数の個数: 128

約数和(自身を含む): 456192000

約数和(自身を除く): 294803112

約数列:

[1, 2, 3, 4, 6, 8, 12, 17, 19, 24, 34, 38, 51, 57, 68, 76, 102, 109, 114, 136, 152, 191, 204, 218, 228, 323, 327, 382, 408, 436, 456, 573, 646, 654, 764, 872, 969, 1146, 1292, 1308, 1528, 1853, 1938, 2071, 2292, 2584, 2616, 3247, 3629, 3706, 3876, 4142, 4584, 5559, 6213, 6494, 7258, 7412, 7752, 8284, 9741, 10887, 11118, 12426, 12988, 14516, 14824, 16568, 19482, 20819, 21774, 22236, 24852, 25976, 29032, 35207, 38964, 41638, 43548, 44472, 49704, 61693, 62457, 70414, 77928, 83276, 87096, 105621, 123386, 124914, 140828, 166552, 185079, 211242, 246772, 249828, 281656, 353923, 370158, 395561, 422484, 493544, 499656, 707846, 740316, 791122, 844968, 1061769, 1186683, 1415692, 1480632, 1582244, 2123538, 2373366, 2831384, 3164488, 4247076, 4746732, 6724537, 8494152, 9493464, 13449074, 20173611, 26898148, 40347222, 53796296, 80694444, 161388888]

約数ペア:

[(1, 161388888), (2, 80694444), (3, 53796296), (4, 40347222), (6, 26898148), (8, 20173611), (12, 13449074), (17, 9493464), (19, 8494152), (24, 6724537), (34, 4746732), (38, 4247076), (51, 3164488), (57, 2831384), (68, 2373366), (76, 2123538), (102, 1582244), (109, 1480632), (114, 1415692), (136, 1186683), (152, 1061769), (191, 844968), (204, 791122), (218, 740316), (228, 707846), (323, 499656), (327, 493544), (382, 422484), (408, 395561), (436, 370158), (456, 353923), (573, 281656), (646, 249828), (654, 246772), (764, 211242), (872, 185079), (969, 166552), (1146, 140828), (1292, 124914), (1308, 123386), (1528, 105621), (1853, 87096), (1938, 83276), (2071, 77928), (2292, 70414), (2584, 62457), (2616, 61693), (3247, 49704), (3629, 44472), (3706, 43548), (3876, 41638), (4142, 38964), (4584, 35207), (5559, 29032), (6213, 25976), (6494, 24852), (7258, 22236), (7412, 21774), (7752, 20819), (8284, 19482), (9741, 16568), (10887, 14824), (11118, 14516), (12426, 12988)]