19965860

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{32203}}^1$

素因数の和:32243

約数の個数: 24

約数和(自身を含む): 43282176

約数和(自身を除く): 23316316

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 310, 620, 32203, 64406, 128812, 161015, 322030, 644060, 998293, 1996586, 3993172, 4991465, 9982930, 19965860]

約数ペア:

[(1, 19965860), (2, 9982930), (4, 4991465), (5, 3993172), (10, 1996586), (20, 998293), (31, 644060), (62, 322030), (124, 161015), (155, 128812), (310, 64406), (620, 32203)]