31197840

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{61}}^1\times {\mathrm{2131}}^1$

素因数の和:2208

約数の個数: 80

約数和(自身を含む): 98344896

約数和(自身を除く): 67147056

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 61, 80, 120, 122, 183, 240, 244, 305, 366, 488, 610, 732, 915, 976, 1220, 1464, 1830, 2131, 2440, 2928, 3660, 4262, 4880, 6393, 7320, 8524, 10655, 12786, 14640, 17048, 21310, 25572, 31965, 34096, 42620, 51144, 63930, 85240, 102288, 127860, 129991, 170480, 255720, 259982, 389973, 511440, 519964, 649955, 779946, 1039928, 1299910, 1559892, 1949865, 2079856, 2599820, 3119784, 3899730, 5199640, 6239568, 7799460, 10399280, 15598920, 31197840]

約数ペア:

[(1, 31197840), (2, 15598920), (3, 10399280), (4, 7799460), (5, 6239568), (6, 5199640), (8, 3899730), (10, 3119784), (12, 2599820), (15, 2079856), (16, 1949865), (20, 1559892), (24, 1299910), (30, 1039928), (40, 779946), (48, 649955), (60, 519964), (61, 511440), (80, 389973), (120, 259982), (122, 255720), (183, 170480), (240, 129991), (244, 127860), (305, 102288), (366, 85240), (488, 63930), (610, 51144), (732, 42620), (915, 34096), (976, 31965), (1220, 25572), (1464, 21310), (1830, 17048), (2131, 14640), (2440, 12786), (2928, 10655), (3660, 8524), (4262, 7320), (4880, 6393)]