31290880

素因数分解:

$2^9\times 5^1\times {\mathrm{17}}^1\times {\mathrm{719}}^1$

素因数の和:759

約数の個数: 80

約数和(自身を含む): 79548480

約数和(自身を除く): 48257600

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 32, 34, 40, 64, 68, 80, 85, 128, 136, 160, 170, 256, 272, 320, 340, 512, 544, 640, 680, 719, 1088, 1280, 1360, 1438, 2176, 2560, 2720, 2876, 3595, 4352, 5440, 5752, 7190, 8704, 10880, 11504, 12223, 14380, 21760, 23008, 24446, 28760, 43520, 46016, 48892, 57520, 61115, 92032, 97784, 115040, 122230, 184064, 195568, 230080, 244460, 368128, 391136, 460160, 488920, 782272, 920320, 977840, 1564544, 1840640, 1955680, 3129088, 3911360, 6258176, 7822720, 15645440, 31290880]

約数ペア:

[(1, 31290880), (2, 15645440), (4, 7822720), (5, 6258176), (8, 3911360), (10, 3129088), (16, 1955680), (17, 1840640), (20, 1564544), (32, 977840), (34, 920320), (40, 782272), (64, 488920), (68, 460160), (80, 391136), (85, 368128), (128, 244460), (136, 230080), (160, 195568), (170, 184064), (256, 122230), (272, 115040), (320, 97784), (340, 92032), (512, 61115), (544, 57520), (640, 48892), (680, 46016), (719, 43520), (1088, 28760), (1280, 24446), (1360, 23008), (1438, 21760), (2176, 14380), (2560, 12223), (2720, 11504), (2876, 10880), (3595, 8704), (4352, 7190), (5440, 5752)]