28813725

素因数分解:

$3^7\times 5^2\times {\mathrm{17}}^1\times {\mathrm{31}}^1$

素因数の和:79

約数の個数: 96

約数和(自身を含む): 58567680

約数和(自身を除く): 29753955

約数列:

[1, 3, 5, 9, 15, 17, 25, 27, 31, 45, 51, 75, 81, 85, 93, 135, 153, 155, 225, 243, 255, 279, 405, 425, 459, 465, 527, 675, 729, 765, 775, 837, 1215, 1275, 1377, 1395, 1581, 2025, 2187, 2295, 2325, 2511, 2635, 3645, 3825, 4131, 4185, 4743, 6075, 6885, 6975, 7533, 7905, 10935, 11475, 12393, 12555, 13175, 14229, 18225, 20655, 20925, 22599, 23715, 34425, 37179, 37665, 39525, 42687, 54675, 61965, 62775, 67797, 71145, 103275, 112995, 118575, 128061, 185895, 188325, 213435, 309825, 338985, 355725, 384183, 564975, 640305, 929475, 1067175, 1152549, 1694925, 1920915, 3201525, 5762745, 9604575, 28813725]

約数ペア:

[(1, 28813725), (3, 9604575), (5, 5762745), (9, 3201525), (15, 1920915), (17, 1694925), (25, 1152549), (27, 1067175), (31, 929475), (45, 640305), (51, 564975), (75, 384183), (81, 355725), (85, 338985), (93, 309825), (135, 213435), (153, 188325), (155, 185895), (225, 128061), (243, 118575), (255, 112995), (279, 103275), (405, 71145), (425, 67797), (459, 62775), (465, 61965), (527, 54675), (675, 42687), (729, 39525), (765, 37665), (775, 37179), (837, 34425), (1215, 23715), (1275, 22599), (1377, 20925), (1395, 20655), (1581, 18225), (2025, 14229), (2187, 13175), (2295, 12555), (2325, 12393), (2511, 11475), (2635, 10935), (3645, 7905), (3825, 7533), (4131, 6975), (4185, 6885), (4743, 6075)]