25291720

素因数分解:

$2^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{743}}^1$

素因数の和:814

約数の個数: 64

約数和(自身を含む): 61067520

約数和(自身を除く): 35775800

約数列:

[1, 2, 4, 5, 8, 10, 20, 23, 37, 40, 46, 74, 92, 115, 148, 184, 185, 230, 296, 370, 460, 740, 743, 851, 920, 1480, 1486, 1702, 2972, 3404, 3715, 4255, 5944, 6808, 7430, 8510, 14860, 17020, 17089, 27491, 29720, 34040, 34178, 54982, 68356, 85445, 109964, 136712, 137455, 170890, 219928, 274910, 341780, 549820, 632293, 683560, 1099640, 1264586, 2529172, 3161465, 5058344, 6322930, 12645860, 25291720]

約数ペア:

[(1, 25291720), (2, 12645860), (4, 6322930), (5, 5058344), (8, 3161465), (10, 2529172), (20, 1264586), (23, 1099640), (37, 683560), (40, 632293), (46, 549820), (74, 341780), (92, 274910), (115, 219928), (148, 170890), (184, 137455), (185, 136712), (230, 109964), (296, 85445), (370, 68356), (460, 54982), (740, 34178), (743, 34040), (851, 29720), (920, 27491), (1480, 17089), (1486, 17020), (1702, 14860), (2972, 8510), (3404, 7430), (3715, 6808), (4255, 5944)]