80900080

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{32621}}^1$

素因数の和:32665

約数の個数: 40

約数和(自身を含む): 194166144

約数和(自身を除く): 113266064

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 80, 124, 155, 248, 310, 496, 620, 1240, 2480, 32621, 65242, 130484, 163105, 260968, 326210, 521936, 652420, 1011251, 1304840, 2022502, 2609680, 4045004, 5056255, 8090008, 10112510, 16180016, 20225020, 40450040, 80900080]

約数ペア:

[(1, 80900080), (2, 40450040), (4, 20225020), (5, 16180016), (8, 10112510), (10, 8090008), (16, 5056255), (20, 4045004), (31, 2609680), (40, 2022502), (62, 1304840), (80, 1011251), (124, 652420), (155, 521936), (248, 326210), (310, 260968), (496, 163105), (620, 130484), (1240, 65242), (2480, 32621)]