16505020

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{3803}}^1$

素因数の和:3850

約数の個数: 48

約数和(自身を含む): 40900608

約数和(自身を除く): 24395588

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 31, 35, 62, 70, 124, 140, 155, 217, 310, 434, 620, 868, 1085, 2170, 3803, 4340, 7606, 15212, 19015, 26621, 38030, 53242, 76060, 106484, 117893, 133105, 235786, 266210, 471572, 532420, 589465, 825251, 1178930, 1650502, 2357860, 3301004, 4126255, 8252510, 16505020]

約数ペア:

[(1, 16505020), (2, 8252510), (4, 4126255), (5, 3301004), (7, 2357860), (10, 1650502), (14, 1178930), (20, 825251), (28, 589465), (31, 532420), (35, 471572), (62, 266210), (70, 235786), (124, 133105), (140, 117893), (155, 106484), (217, 76060), (310, 53242), (434, 38030), (620, 26621), (868, 19015), (1085, 15212), (2170, 7606), (3803, 4340)]