84780040

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{68371}}^1$

素因数の和:68413

約数の個数: 32

約数和(自身を含む): 196911360

約数和(自身を除く): 112131320

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 248, 310, 620, 1240, 68371, 136742, 273484, 341855, 546968, 683710, 1367420, 2119501, 2734840, 4239002, 8478004, 10597505, 16956008, 21195010, 42390020, 84780040]

約数ペア:

[(1, 84780040), (2, 42390020), (4, 21195010), (5, 16956008), (8, 10597505), (10, 8478004), (20, 4239002), (31, 2734840), (40, 2119501), (62, 1367420), (124, 683710), (155, 546968), (248, 341855), (310, 273484), (620, 136742), (1240, 68371)]