161720856

素因数分解:

$2^3\times 3^2\times {\mathrm{11}}^2\times {\mathrm{19}}^1\times {\mathrm{977}}^1$

素因数の和:1030

約数の個数: 144

約数和(自身を含む): 507288600

約数和(自身を除く): 345567744

約数列:

[1, 2, 3, 4, 6, 8, 9, 11, 12, 18, 19, 22, 24, 33, 36, 38, 44, 57, 66, 72, 76, 88, 99, 114, 121, 132, 152, 171, 198, 209, 228, 242, 264, 342, 363, 396, 418, 456, 484, 627, 684, 726, 792, 836, 968, 977, 1089, 1254, 1368, 1452, 1672, 1881, 1954, 2178, 2299, 2508, 2904, 2931, 3762, 3908, 4356, 4598, 5016, 5862, 6897, 7524, 7816, 8712, 8793, 9196, 10747, 11724, 13794, 15048, 17586, 18392, 18563, 20691, 21494, 23448, 27588, 32241, 35172, 37126, 41382, 42988, 55176, 55689, 64482, 70344, 74252, 82764, 85976, 96723, 111378, 118217, 128964, 148504, 165528, 167067, 193446, 204193, 222756, 236434, 257928, 334134, 354651, 386892, 408386, 445512, 472868, 612579, 668268, 709302, 773784, 816772, 945736, 1063953, 1225158, 1336536, 1418604, 1633544, 1837737, 2127906, 2246123, 2450316, 2837208, 3675474, 4255812, 4492246, 4900632, 6738369, 7350948, 8511624, 8984492, 13476738, 14701896, 17968984, 20215107, 26953476, 40430214, 53906952, 80860428, 161720856]

約数ペア:

[(1, 161720856), (2, 80860428), (3, 53906952), (4, 40430214), (6, 26953476), (8, 20215107), (9, 17968984), (11, 14701896), (12, 13476738), (18, 8984492), (19, 8511624), (22, 7350948), (24, 6738369), (33, 4900632), (36, 4492246), (38, 4255812), (44, 3675474), (57, 2837208), (66, 2450316), (72, 2246123), (76, 2127906), (88, 1837737), (99, 1633544), (114, 1418604), (121, 1336536), (132, 1225158), (152, 1063953), (171, 945736), (198, 816772), (209, 773784), (228, 709302), (242, 668268), (264, 612579), (342, 472868), (363, 445512), (396, 408386), (418, 386892), (456, 354651), (484, 334134), (627, 257928), (684, 236434), (726, 222756), (792, 204193), (836, 193446), (968, 167067), (977, 165528), (1089, 148504), (1254, 128964), (1368, 118217), (1452, 111378), (1672, 96723), (1881, 85976), (1954, 82764), (2178, 74252), (2299, 70344), (2508, 64482), (2904, 55689), (2931, 55176), (3762, 42988), (3908, 41382), (4356, 37126), (4598, 35172), (5016, 32241), (5862, 27588), (6897, 23448), (7524, 21494), (7816, 20691), (8712, 18563), (8793, 18392), (9196, 17586), (10747, 15048), (11724, 13794)]