19761580

素因数分解:

$2^2\times 5^1\times {\mathrm{53}}^1\times {\mathrm{103}}^1\times {\mathrm{181}}^1$

素因数の和:346

約数の個数: 48

約数和(自身を含む): 42928704

約数和(自身を除く): 23167124

約数列:

[1, 2, 4, 5, 10, 20, 53, 103, 106, 181, 206, 212, 265, 362, 412, 515, 530, 724, 905, 1030, 1060, 1810, 2060, 3620, 5459, 9593, 10918, 18643, 19186, 21836, 27295, 37286, 38372, 47965, 54590, 74572, 93215, 95930, 109180, 186430, 191860, 372860, 988079, 1976158, 3952316, 4940395, 9880790, 19761580]

約数ペア:

[(1, 19761580), (2, 9880790), (4, 4940395), (5, 3952316), (10, 1976158), (20, 988079), (53, 372860), (103, 191860), (106, 186430), (181, 109180), (206, 95930), (212, 93215), (265, 74572), (362, 54590), (412, 47965), (515, 38372), (530, 37286), (724, 27295), (905, 21836), (1030, 19186), (1060, 18643), (1810, 10918), (2060, 9593), (3620, 5459)]