20946080

素因数分解:

$2^5\times 5^1\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{103}}^1$

素因数の和:190

約数の個数: 96

約数和(自身を含む): 52835328

約数和(自身を除く): 31889248

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 41, 62, 80, 82, 103, 124, 155, 160, 164, 205, 206, 248, 310, 328, 410, 412, 496, 515, 620, 656, 820, 824, 992, 1030, 1240, 1271, 1312, 1640, 1648, 2060, 2480, 2542, 3193, 3280, 3296, 4120, 4223, 4960, 5084, 6355, 6386, 6560, 8240, 8446, 10168, 12710, 12772, 15965, 16480, 16892, 20336, 21115, 25420, 25544, 31930, 33784, 40672, 42230, 50840, 51088, 63860, 67568, 84460, 101680, 102176, 127720, 130913, 135136, 168920, 203360, 255440, 261826, 337840, 510880, 523652, 654565, 675680, 1047304, 1309130, 2094608, 2618260, 4189216, 5236520, 10473040, 20946080]

約数ペア:

[(1, 20946080), (2, 10473040), (4, 5236520), (5, 4189216), (8, 2618260), (10, 2094608), (16, 1309130), (20, 1047304), (31, 675680), (32, 654565), (40, 523652), (41, 510880), (62, 337840), (80, 261826), (82, 255440), (103, 203360), (124, 168920), (155, 135136), (160, 130913), (164, 127720), (205, 102176), (206, 101680), (248, 84460), (310, 67568), (328, 63860), (410, 51088), (412, 50840), (496, 42230), (515, 40672), (620, 33784), (656, 31930), (820, 25544), (824, 25420), (992, 21115), (1030, 20336), (1240, 16892), (1271, 16480), (1312, 15965), (1640, 12772), (1648, 12710), (2060, 10168), (2480, 8446), (2542, 8240), (3193, 6560), (3280, 6386), (3296, 6355), (4120, 5084), (4223, 4960)]