28718080

素因数分解:

$2^{10}\times 5^1\times {\mathrm{71}}^1\times {\mathrm{79}}^1$

素因数の和:175

約数の個数: 88

約数和(自身を含む): 70744320

約数和(自身を除く): 42026240

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 71, 79, 80, 128, 142, 158, 160, 256, 284, 316, 320, 355, 395, 512, 568, 632, 640, 710, 790, 1024, 1136, 1264, 1280, 1420, 1580, 2272, 2528, 2560, 2840, 3160, 4544, 5056, 5120, 5609, 5680, 6320, 9088, 10112, 11218, 11360, 12640, 18176, 20224, 22436, 22720, 25280, 28045, 36352, 40448, 44872, 45440, 50560, 56090, 72704, 80896, 89744, 90880, 101120, 112180, 179488, 181760, 202240, 224360, 358976, 363520, 404480, 448720, 717952, 897440, 1435904, 1794880, 2871808, 3589760, 5743616, 7179520, 14359040, 28718080]

約数ペア:

[(1, 28718080), (2, 14359040), (4, 7179520), (5, 5743616), (8, 3589760), (10, 2871808), (16, 1794880), (20, 1435904), (32, 897440), (40, 717952), (64, 448720), (71, 404480), (79, 363520), (80, 358976), (128, 224360), (142, 202240), (158, 181760), (160, 179488), (256, 112180), (284, 101120), (316, 90880), (320, 89744), (355, 80896), (395, 72704), (512, 56090), (568, 50560), (632, 45440), (640, 44872), (710, 40448), (790, 36352), (1024, 28045), (1136, 25280), (1264, 22720), (1280, 22436), (1420, 20224), (1580, 18176), (2272, 12640), (2528, 11360), (2560, 11218), (2840, 10112), (3160, 9088), (4544, 6320), (5056, 5680), (5120, 5609)]