67871990

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{21013}}^1$

素因数の和:21056

約数の個数: 32

約数和(自身を含む): 136170720

約数和(自身を除く): 68298730

約数列:

[1, 2, 5, 10, 17, 19, 34, 38, 85, 95, 170, 190, 323, 646, 1615, 3230, 21013, 42026, 105065, 210130, 357221, 399247, 714442, 798494, 1786105, 1996235, 3572210, 3992470, 6787199, 13574398, 33935995, 67871990]

約数ペア:

[(1, 67871990), (2, 33935995), (5, 13574398), (10, 6787199), (17, 3992470), (19, 3572210), (34, 1996235), (38, 1786105), (85, 798494), (95, 714442), (170, 399247), (190, 357221), (323, 210130), (646, 105065), (1615, 42026), (3230, 21013)]