28135680

素因数分解:

$2^8\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{431}}^1$

素因数の和:472

約数の個数: 144

約数和(自身を含む): 95364864

約数和(自身を除く): 67229184

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 17, 20, 24, 30, 32, 34, 40, 48, 51, 60, 64, 68, 80, 85, 96, 102, 120, 128, 136, 160, 170, 192, 204, 240, 255, 256, 272, 320, 340, 384, 408, 431, 480, 510, 544, 640, 680, 768, 816, 862, 960, 1020, 1088, 1280, 1293, 1360, 1632, 1724, 1920, 2040, 2155, 2176, 2586, 2720, 3264, 3448, 3840, 4080, 4310, 4352, 5172, 5440, 6465, 6528, 6896, 7327, 8160, 8620, 10344, 10880, 12930, 13056, 13792, 14654, 16320, 17240, 20688, 21760, 21981, 25860, 27584, 29308, 32640, 34480, 36635, 41376, 43962, 51720, 55168, 58616, 65280, 68960, 73270, 82752, 87924, 103440, 109905, 110336, 117232, 137920, 146540, 165504, 175848, 206880, 219810, 234464, 275840, 293080, 331008, 351696, 413760, 439620, 468928, 551680, 586160, 703392, 827520, 879240, 937856, 1172320, 1406784, 1655040, 1758480, 1875712, 2344640, 2813568, 3516960, 4689280, 5627136, 7033920, 9378560, 14067840, 28135680]

約数ペア:

[(1, 28135680), (2, 14067840), (3, 9378560), (4, 7033920), (5, 5627136), (6, 4689280), (8, 3516960), (10, 2813568), (12, 2344640), (15, 1875712), (16, 1758480), (17, 1655040), (20, 1406784), (24, 1172320), (30, 937856), (32, 879240), (34, 827520), (40, 703392), (48, 586160), (51, 551680), (60, 468928), (64, 439620), (68, 413760), (80, 351696), (85, 331008), (96, 293080), (102, 275840), (120, 234464), (128, 219810), (136, 206880), (160, 175848), (170, 165504), (192, 146540), (204, 137920), (240, 117232), (255, 110336), (256, 109905), (272, 103440), (320, 87924), (340, 82752), (384, 73270), (408, 68960), (431, 65280), (480, 58616), (510, 55168), (544, 51720), (640, 43962), (680, 41376), (768, 36635), (816, 34480), (862, 32640), (960, 29308), (1020, 27584), (1088, 25860), (1280, 21981), (1293, 21760), (1360, 20688), (1632, 17240), (1724, 16320), (1920, 14654), (2040, 13792), (2155, 13056), (2176, 12930), (2586, 10880), (2720, 10344), (3264, 8620), (3448, 8160), (3840, 7327), (4080, 6896), (4310, 6528), (4352, 6465), (5172, 5440)]