72168040

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{373}}^1\times {\mathrm{691}}^1$

素因数の和:1082

約数の個数: 64

約数和(自身を含む): 186341760

約数和(自身を除く): 114173720

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 373, 691, 746, 1382, 1492, 1865, 2611, 2764, 2984, 3455, 3730, 4837, 5222, 5528, 6910, 7460, 9674, 10444, 13055, 13820, 14920, 19348, 20888, 24185, 26110, 27640, 38696, 48370, 52220, 96740, 104440, 193480, 257743, 515486, 1030972, 1288715, 1804201, 2061944, 2577430, 3608402, 5154860, 7216804, 9021005, 10309720, 14433608, 18042010, 36084020, 72168040]

約数ペア:

[(1, 72168040), (2, 36084020), (4, 18042010), (5, 14433608), (7, 10309720), (8, 9021005), (10, 7216804), (14, 5154860), (20, 3608402), (28, 2577430), (35, 2061944), (40, 1804201), (56, 1288715), (70, 1030972), (140, 515486), (280, 257743), (373, 193480), (691, 104440), (746, 96740), (1382, 52220), (1492, 48370), (1865, 38696), (2611, 27640), (2764, 26110), (2984, 24185), (3455, 20888), (3730, 19348), (4837, 14920), (5222, 13820), (5528, 13055), (6910, 10444), (7460, 9674)]