169986640

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{68543}}^1$

素因数の和:68587

約数の個数: 40

約数和(自身を含む): 407973888

約数和(自身を除く): 237987248

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 80, 124, 155, 248, 310, 496, 620, 1240, 2480, 68543, 137086, 274172, 342715, 548344, 685430, 1096688, 1370860, 2124833, 2741720, 4249666, 5483440, 8499332, 10624165, 16998664, 21248330, 33997328, 42496660, 84993320, 169986640]

約数ペア:

[(1, 169986640), (2, 84993320), (4, 42496660), (5, 33997328), (8, 21248330), (10, 16998664), (16, 10624165), (20, 8499332), (31, 5483440), (40, 4249666), (62, 2741720), (80, 2124833), (124, 1370860), (155, 1096688), (248, 685430), (310, 548344), (496, 342715), (620, 274172), (1240, 137086), (2480, 68543)]