28733440

素因数分解:

$2^{12}\times 5^1\times {\mathrm{23}}^1\times {\mathrm{61}}^1$

素因数の和:113

約数の個数: 104

約数和(自身を含む): 73129248

約数和(自身を除く): 44395808

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 23, 32, 40, 46, 61, 64, 80, 92, 115, 122, 128, 160, 184, 230, 244, 256, 305, 320, 368, 460, 488, 512, 610, 640, 736, 920, 976, 1024, 1220, 1280, 1403, 1472, 1840, 1952, 2048, 2440, 2560, 2806, 2944, 3680, 3904, 4096, 4880, 5120, 5612, 5888, 7015, 7360, 7808, 9760, 10240, 11224, 11776, 14030, 14720, 15616, 19520, 20480, 22448, 23552, 28060, 29440, 31232, 39040, 44896, 47104, 56120, 58880, 62464, 78080, 89792, 94208, 112240, 117760, 124928, 156160, 179584, 224480, 235520, 249856, 312320, 359168, 448960, 471040, 624640, 718336, 897920, 1249280, 1436672, 1795840, 2873344, 3591680, 5746688, 7183360, 14366720, 28733440]

約数ペア:

[(1, 28733440), (2, 14366720), (4, 7183360), (5, 5746688), (8, 3591680), (10, 2873344), (16, 1795840), (20, 1436672), (23, 1249280), (32, 897920), (40, 718336), (46, 624640), (61, 471040), (64, 448960), (80, 359168), (92, 312320), (115, 249856), (122, 235520), (128, 224480), (160, 179584), (184, 156160), (230, 124928), (244, 117760), (256, 112240), (305, 94208), (320, 89792), (368, 78080), (460, 62464), (488, 58880), (512, 56120), (610, 47104), (640, 44896), (736, 39040), (920, 31232), (976, 29440), (1024, 28060), (1220, 23552), (1280, 22448), (1403, 20480), (1472, 19520), (1840, 15616), (1952, 14720), (2048, 14030), (2440, 11776), (2560, 11224), (2806, 10240), (2944, 9760), (3680, 7808), (3904, 7360), (4096, 7015), (4880, 5888), (5120, 5612)]