20968780

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{7883}}^1$

素因数の和:7918

約数の個数: 48

約数和(自身を含む): 52980480

約数和(自身を除く): 32011700

約数列:

[1, 2, 4, 5, 7, 10, 14, 19, 20, 28, 35, 38, 70, 76, 95, 133, 140, 190, 266, 380, 532, 665, 1330, 2660, 7883, 15766, 31532, 39415, 55181, 78830, 110362, 149777, 157660, 220724, 275905, 299554, 551810, 599108, 748885, 1048439, 1103620, 1497770, 2096878, 2995540, 4193756, 5242195, 10484390, 20968780]

約数ペア:

[(1, 20968780), (2, 10484390), (4, 5242195), (5, 4193756), (7, 2995540), (10, 2096878), (14, 1497770), (19, 1103620), (20, 1048439), (28, 748885), (35, 599108), (38, 551810), (70, 299554), (76, 275905), (95, 220724), (133, 157660), (140, 149777), (190, 110362), (266, 78830), (380, 55181), (532, 39415), (665, 31532), (1330, 15766), (2660, 7883)]