161531856

素因数分解:

$2^4\times 3^2\times {\mathrm{29}}^1\times {\mathrm{47}}^1\times {\mathrm{823}}^1$

素因数の和:913

約数の個数: 120

約数和(自身を含む): 478183680

約数和(自身を除く): 316651824

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 29, 36, 47, 48, 58, 72, 87, 94, 116, 141, 144, 174, 188, 232, 261, 282, 348, 376, 423, 464, 522, 564, 696, 752, 823, 846, 1044, 1128, 1363, 1392, 1646, 1692, 2088, 2256, 2469, 2726, 3292, 3384, 4089, 4176, 4938, 5452, 6584, 6768, 7407, 8178, 9876, 10904, 12267, 13168, 14814, 16356, 19752, 21808, 23867, 24534, 29628, 32712, 38681, 39504, 47734, 49068, 59256, 65424, 71601, 77362, 95468, 98136, 116043, 118512, 143202, 154724, 190936, 196272, 214803, 232086, 286404, 309448, 348129, 381872, 429606, 464172, 572808, 618896, 696258, 859212, 928344, 1121749, 1145616, 1392516, 1718424, 1856688, 2243498, 2785032, 3365247, 3436848, 4486996, 5570064, 6730494, 8973992, 10095741, 13460988, 17947984, 20191482, 26921976, 40382964, 53843952, 80765928, 161531856]

約数ペア:

[(1, 161531856), (2, 80765928), (3, 53843952), (4, 40382964), (6, 26921976), (8, 20191482), (9, 17947984), (12, 13460988), (16, 10095741), (18, 8973992), (24, 6730494), (29, 5570064), (36, 4486996), (47, 3436848), (48, 3365247), (58, 2785032), (72, 2243498), (87, 1856688), (94, 1718424), (116, 1392516), (141, 1145616), (144, 1121749), (174, 928344), (188, 859212), (232, 696258), (261, 618896), (282, 572808), (348, 464172), (376, 429606), (423, 381872), (464, 348129), (522, 309448), (564, 286404), (696, 232086), (752, 214803), (823, 196272), (846, 190936), (1044, 154724), (1128, 143202), (1363, 118512), (1392, 116043), (1646, 98136), (1692, 95468), (2088, 77362), (2256, 71601), (2469, 65424), (2726, 59256), (3292, 49068), (3384, 47734), (4089, 39504), (4176, 38681), (4938, 32712), (5452, 29628), (6584, 24534), (6768, 23867), (7407, 21808), (8178, 19752), (9876, 16356), (10904, 14814), (12267, 13168)]