28967680

素因数分解:

$2^8\times 5^1\times 7^1\times {\mathrm{53}}^1\times {\mathrm{61}}^1$

素因数の和:142

約数の個数: 144

約数和(自身を含む): 82119744

約数和(自身を除く): 53152064

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 53, 56, 61, 64, 70, 80, 106, 112, 122, 128, 140, 160, 212, 224, 244, 256, 265, 280, 305, 320, 371, 424, 427, 448, 488, 530, 560, 610, 640, 742, 848, 854, 896, 976, 1060, 1120, 1220, 1280, 1484, 1696, 1708, 1792, 1855, 1952, 2120, 2135, 2240, 2440, 2968, 3233, 3392, 3416, 3710, 3904, 4240, 4270, 4480, 4880, 5936, 6466, 6784, 6832, 7420, 7808, 8480, 8540, 8960, 9760, 11872, 12932, 13568, 13664, 14840, 15616, 16165, 16960, 17080, 19520, 22631, 23744, 25864, 27328, 29680, 32330, 33920, 34160, 39040, 45262, 47488, 51728, 54656, 59360, 64660, 67840, 68320, 78080, 90524, 94976, 103456, 109312, 113155, 118720, 129320, 136640, 181048, 206912, 226310, 237440, 258640, 273280, 362096, 413824, 452620, 474880, 517280, 546560, 724192, 827648, 905240, 1034560, 1448384, 1810480, 2069120, 2896768, 3620960, 4138240, 5793536, 7241920, 14483840, 28967680]

約数ペア:

[(1, 28967680), (2, 14483840), (4, 7241920), (5, 5793536), (7, 4138240), (8, 3620960), (10, 2896768), (14, 2069120), (16, 1810480), (20, 1448384), (28, 1034560), (32, 905240), (35, 827648), (40, 724192), (53, 546560), (56, 517280), (61, 474880), (64, 452620), (70, 413824), (80, 362096), (106, 273280), (112, 258640), (122, 237440), (128, 226310), (140, 206912), (160, 181048), (212, 136640), (224, 129320), (244, 118720), (256, 113155), (265, 109312), (280, 103456), (305, 94976), (320, 90524), (371, 78080), (424, 68320), (427, 67840), (448, 64660), (488, 59360), (530, 54656), (560, 51728), (610, 47488), (640, 45262), (742, 39040), (848, 34160), (854, 33920), (896, 32330), (976, 29680), (1060, 27328), (1120, 25864), (1220, 23744), (1280, 22631), (1484, 19520), (1696, 17080), (1708, 16960), (1792, 16165), (1855, 15616), (1952, 14840), (2120, 13664), (2135, 13568), (2240, 12932), (2440, 11872), (2968, 9760), (3233, 8960), (3392, 8540), (3416, 8480), (3710, 7808), (3904, 7420), (4240, 6832), (4270, 6784), (4480, 6466), (4880, 5936)]