87705940

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{89}}^1\times {\mathrm{7039}}^1$

素因数の和:7144

約数の個数: 48

約数和(自身を含む): 212889600

約数和(自身を除く): 125183660

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 89, 140, 178, 356, 445, 623, 890, 1246, 1780, 2492, 3115, 6230, 7039, 12460, 14078, 28156, 35195, 49273, 70390, 98546, 140780, 197092, 246365, 492730, 626471, 985460, 1252942, 2505884, 3132355, 4385297, 6264710, 8770594, 12529420, 17541188, 21926485, 43852970, 87705940]

約数ペア:

[(1, 87705940), (2, 43852970), (4, 21926485), (5, 17541188), (7, 12529420), (10, 8770594), (14, 6264710), (20, 4385297), (28, 3132355), (35, 2505884), (70, 1252942), (89, 985460), (140, 626471), (178, 492730), (356, 246365), (445, 197092), (623, 140780), (890, 98546), (1246, 70390), (1780, 49273), (2492, 35195), (3115, 28156), (6230, 14078), (7039, 12460)]