381401680

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^2\times {\mathrm{31}}^2\times {\mathrm{41}}^1$

素因数の和:138

約数の個数: 180

約数和(自身を含む): 1031723028

約数和(自身を除く): 650321348

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 31, 40, 41, 44, 55, 62, 80, 82, 88, 110, 121, 124, 155, 164, 176, 205, 220, 242, 248, 310, 328, 341, 410, 440, 451, 484, 496, 605, 620, 656, 682, 820, 880, 902, 961, 968, 1210, 1240, 1271, 1364, 1640, 1705, 1804, 1922, 1936, 2255, 2420, 2480, 2542, 2728, 3280, 3410, 3608, 3751, 3844, 4510, 4805, 4840, 4961, 5084, 5456, 6355, 6820, 7216, 7502, 7688, 9020, 9610, 9680, 9922, 10168, 10571, 12710, 13640, 13981, 15004, 15376, 18040, 18755, 19220, 19844, 20336, 21142, 24805, 25420, 27280, 27962, 30008, 36080, 37510, 38440, 39401, 39688, 42284, 49610, 50840, 52855, 55924, 60016, 69905, 75020, 76880, 78802, 79376, 84568, 99220, 101680, 105710, 111848, 116281, 139810, 150040, 153791, 157604, 169136, 197005, 198440, 211420, 223696, 232562, 279620, 300080, 307582, 315208, 394010, 396880, 422840, 433411, 465124, 559240, 581405, 615164, 630416, 768955, 788020, 845680, 866822, 930248, 1118480, 1162810, 1230328, 1537910, 1576040, 1733644, 1860496, 2167055, 2325620, 2460656, 3075820, 3152080, 3467288, 4334110, 4651240, 4767521, 6151640, 6934576, 8668220, 9302480, 9535042, 12303280, 17336440, 19070084, 23837605, 34672880, 38140168, 47675210, 76280336, 95350420, 190700840, 381401680]

約数ペア:

[(1, 381401680), (2, 190700840), (4, 95350420), (5, 76280336), (8, 47675210), (10, 38140168), (11, 34672880), (16, 23837605), (20, 19070084), (22, 17336440), (31, 12303280), (40, 9535042), (41, 9302480), (44, 8668220), (55, 6934576), (62, 6151640), (80, 4767521), (82, 4651240), (88, 4334110), (110, 3467288), (121, 3152080), (124, 3075820), (155, 2460656), (164, 2325620), (176, 2167055), (205, 1860496), (220, 1733644), (242, 1576040), (248, 1537910), (310, 1230328), (328, 1162810), (341, 1118480), (410, 930248), (440, 866822), (451, 845680), (484, 788020), (496, 768955), (605, 630416), (620, 615164), (656, 581405), (682, 559240), (820, 465124), (880, 433411), (902, 422840), (961, 396880), (968, 394010), (1210, 315208), (1240, 307582), (1271, 300080), (1364, 279620), (1640, 232562), (1705, 223696), (1804, 211420), (1922, 198440), (1936, 197005), (2255, 169136), (2420, 157604), (2480, 153791), (2542, 150040), (2728, 139810), (3280, 116281), (3410, 111848), (3608, 105710), (3751, 101680), (3844, 99220), (4510, 84568), (4805, 79376), (4840, 78802), (4961, 76880), (5084, 75020), (5456, 69905), (6355, 60016), (6820, 55924), (7216, 52855), (7502, 50840), (7688, 49610), (9020, 42284), (9610, 39688), (9680, 39401), (9922, 38440), (10168, 37510), (10571, 36080), (12710, 30008), (13640, 27962), (13981, 27280), (15004, 25420), (15376, 24805), (18040, 21142), (18755, 20336), (19220, 19844)]