71722240

素因数分解:

$2^8\times 5^1\times {\mathrm{137}}^1\times {\mathrm{409}}^1$

素因数の和:567

約数の個数: 72

約数和(自身を含む): 173474280

約数和(自身を除く): 101752040

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 137, 160, 256, 274, 320, 409, 548, 640, 685, 818, 1096, 1280, 1370, 1636, 2045, 2192, 2740, 3272, 4090, 4384, 5480, 6544, 8180, 8768, 10960, 13088, 16360, 17536, 21920, 26176, 32720, 35072, 43840, 52352, 56033, 65440, 87680, 104704, 112066, 130880, 175360, 224132, 261760, 280165, 448264, 523520, 560330, 896528, 1120660, 1793056, 2241320, 3586112, 4482640, 7172224, 8965280, 14344448, 17930560, 35861120, 71722240]

約数ペア:

[(1, 71722240), (2, 35861120), (4, 17930560), (5, 14344448), (8, 8965280), (10, 7172224), (16, 4482640), (20, 3586112), (32, 2241320), (40, 1793056), (64, 1120660), (80, 896528), (128, 560330), (137, 523520), (160, 448264), (256, 280165), (274, 261760), (320, 224132), (409, 175360), (548, 130880), (640, 112066), (685, 104704), (818, 87680), (1096, 65440), (1280, 56033), (1370, 52352), (1636, 43840), (2045, 35072), (2192, 32720), (2740, 26176), (3272, 21920), (4090, 17536), (4384, 16360), (5480, 13088), (6544, 10960), (8180, 8768)]