28418775

素因数分解:

$3^1\times 5^2\times 7^2\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1$

素因数の和:94

約数の個数: 144

約数和(自身を含む): 64460160

約数和(自身を除く): 36041385

約数列:

[1, 3, 5, 7, 11, 15, 19, 21, 25, 33, 35, 37, 49, 55, 57, 75, 77, 95, 105, 111, 133, 147, 165, 175, 185, 209, 231, 245, 259, 275, 285, 385, 399, 407, 475, 525, 539, 555, 627, 665, 703, 735, 777, 825, 925, 931, 1045, 1155, 1221, 1225, 1295, 1425, 1463, 1617, 1813, 1925, 1995, 2035, 2109, 2695, 2775, 2793, 2849, 3135, 3325, 3515, 3675, 3885, 4389, 4655, 4921, 5225, 5439, 5775, 6105, 6475, 7315, 7733, 8085, 8547, 9065, 9975, 10175, 10241, 10545, 13475, 13965, 14245, 14763, 15675, 17575, 19425, 19943, 21945, 23199, 23275, 24605, 27195, 30525, 30723, 34447, 36575, 38665, 40425, 42735, 45325, 51205, 52725, 54131, 59829, 69825, 71225, 73815, 99715, 103341, 109725, 115995, 123025, 135975, 153615, 162393, 172235, 193325, 213675, 256025, 270655, 299145, 369075, 378917, 498575, 516705, 579975, 768075, 811965, 861175, 1136751, 1353275, 1495725, 1894585, 2583525, 4059825, 5683755, 9472925, 28418775]

約数ペア:

[(1, 28418775), (3, 9472925), (5, 5683755), (7, 4059825), (11, 2583525), (15, 1894585), (19, 1495725), (21, 1353275), (25, 1136751), (33, 861175), (35, 811965), (37, 768075), (49, 579975), (55, 516705), (57, 498575), (75, 378917), (77, 369075), (95, 299145), (105, 270655), (111, 256025), (133, 213675), (147, 193325), (165, 172235), (175, 162393), (185, 153615), (209, 135975), (231, 123025), (245, 115995), (259, 109725), (275, 103341), (285, 99715), (385, 73815), (399, 71225), (407, 69825), (475, 59829), (525, 54131), (539, 52725), (555, 51205), (627, 45325), (665, 42735), (703, 40425), (735, 38665), (777, 36575), (825, 34447), (925, 30723), (931, 30525), (1045, 27195), (1155, 24605), (1221, 23275), (1225, 23199), (1295, 21945), (1425, 19943), (1463, 19425), (1617, 17575), (1813, 15675), (1925, 14763), (1995, 14245), (2035, 13965), (2109, 13475), (2695, 10545), (2775, 10241), (2793, 10175), (2849, 9975), (3135, 9065), (3325, 8547), (3515, 8085), (3675, 7733), (3885, 7315), (4389, 6475), (4655, 6105), (4921, 5775), (5225, 5439)]