28780090

素因数分解:

$2^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{263}}^1\times {\mathrm{353}}^1$

素因数の和:654

約数の個数: 32

約数和(自身を含む): 53830656

約数和(自身を除く): 25050566

約数列:

[1, 2, 5, 10, 31, 62, 155, 263, 310, 353, 526, 706, 1315, 1765, 2630, 3530, 8153, 10943, 16306, 21886, 40765, 54715, 81530, 92839, 109430, 185678, 464195, 928390, 2878009, 5756018, 14390045, 28780090]

約数ペア:

[(1, 28780090), (2, 14390045), (5, 5756018), (10, 2878009), (31, 928390), (62, 464195), (155, 185678), (263, 109430), (310, 92839), (353, 81530), (526, 54715), (706, 40765), (1315, 21886), (1765, 16306), (2630, 10943), (3530, 8153)]