202124020

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{206249}}^1$

素因数の和:206272

約数の個数: 36

約数和(自身を含む): 493762500

約数和(自身を除く): 291638480

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 490, 980, 206249, 412498, 824996, 1031245, 1443743, 2062490, 2887486, 4124980, 5774972, 7218715, 10106201, 14437430, 20212402, 28874860, 40424804, 50531005, 101062010, 202124020]

約数ペア:

[(1, 202124020), (2, 101062010), (4, 50531005), (5, 40424804), (7, 28874860), (10, 20212402), (14, 14437430), (20, 10106201), (28, 7218715), (35, 5774972), (49, 4124980), (70, 2887486), (98, 2062490), (140, 1443743), (196, 1031245), (245, 824996), (490, 412498), (980, 206249)]