319931408

素因数分解:

$2^4\times {\mathrm{31}}^1\times {\mathrm{645023}}^1$

素因数の和:645062

約数の個数: 20

約数和(自身を含む): 639863808

約数和(自身を除く): 319932400

約数列:

[1, 2, 4, 8, 16, 31, 62, 124, 248, 496, 645023, 1290046, 2580092, 5160184, 10320368, 19995713, 39991426, 79982852, 159965704, 319931408]

約数ペア:

[(1, 319931408), (2, 159965704), (4, 79982852), (8, 39991426), (16, 19995713), (31, 10320368), (62, 5160184), (124, 2580092), (248, 1290046), (496, 645023)]