213220480

素因数分解:

$2^7\times 5^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{977}}^1$

素因数の和:1038

約数の個数: 128

約数和(自身を含む): 574594560

約数和(自身を除く): 361374080

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 31, 32, 40, 44, 55, 62, 64, 80, 88, 110, 124, 128, 155, 160, 176, 220, 248, 310, 320, 341, 352, 440, 496, 620, 640, 682, 704, 880, 977, 992, 1240, 1364, 1408, 1705, 1760, 1954, 1984, 2480, 2728, 3410, 3520, 3908, 3968, 4885, 4960, 5456, 6820, 7040, 7816, 9770, 9920, 10747, 10912, 13640, 15632, 19540, 19840, 21494, 21824, 27280, 30287, 31264, 39080, 42988, 43648, 53735, 54560, 60574, 62528, 78160, 85976, 107470, 109120, 121148, 125056, 151435, 156320, 171952, 214940, 218240, 242296, 302870, 312640, 333157, 343904, 429880, 484592, 605740, 625280, 666314, 687808, 859760, 969184, 1211480, 1332628, 1375616, 1665785, 1719520, 1938368, 2422960, 2665256, 3331570, 3439040, 3876736, 4845920, 5330512, 6663140, 6878080, 9691840, 10661024, 13326280, 19383680, 21322048, 26652560, 42644096, 53305120, 106610240, 213220480]

約数ペア:

[(1, 213220480), (2, 106610240), (4, 53305120), (5, 42644096), (8, 26652560), (10, 21322048), (11, 19383680), (16, 13326280), (20, 10661024), (22, 9691840), (31, 6878080), (32, 6663140), (40, 5330512), (44, 4845920), (55, 3876736), (62, 3439040), (64, 3331570), (80, 2665256), (88, 2422960), (110, 1938368), (124, 1719520), (128, 1665785), (155, 1375616), (160, 1332628), (176, 1211480), (220, 969184), (248, 859760), (310, 687808), (320, 666314), (341, 625280), (352, 605740), (440, 484592), (496, 429880), (620, 343904), (640, 333157), (682, 312640), (704, 302870), (880, 242296), (977, 218240), (992, 214940), (1240, 171952), (1364, 156320), (1408, 151435), (1705, 125056), (1760, 121148), (1954, 109120), (1984, 107470), (2480, 85976), (2728, 78160), (3410, 62528), (3520, 60574), (3908, 54560), (3968, 53735), (4885, 43648), (4960, 42988), (5456, 39080), (6820, 31264), (7040, 30287), (7816, 27280), (9770, 21824), (9920, 21494), (10747, 19840), (10912, 19540), (13640, 15632)]