31626640

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{20807}}^1$

素因数の和:20839

約数の個数: 40

約数和(自身を含む): 77405760

約数和(自身を除く): 45779120

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 76, 80, 95, 152, 190, 304, 380, 760, 1520, 20807, 41614, 83228, 104035, 166456, 208070, 332912, 395333, 416140, 790666, 832280, 1581332, 1664560, 1976665, 3162664, 3953330, 6325328, 7906660, 15813320, 31626640]

約数ペア:

[(1, 31626640), (2, 15813320), (4, 7906660), (5, 6325328), (8, 3953330), (10, 3162664), (16, 1976665), (19, 1664560), (20, 1581332), (38, 832280), (40, 790666), (76, 416140), (80, 395333), (95, 332912), (152, 208070), (190, 166456), (304, 104035), (380, 83228), (760, 41614), (1520, 20807)]