166838140

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{170243}}^1$

素因数の和:170266

約数の個数: 36

約数和(自身を含む): 407564136

約数和(自身を除く): 240725996

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 490, 980, 170243, 340486, 680972, 851215, 1191701, 1702430, 2383402, 3404860, 4766804, 5958505, 8341907, 11917010, 16683814, 23834020, 33367628, 41709535, 83419070, 166838140]

約数ペア:

[(1, 166838140), (2, 83419070), (4, 41709535), (5, 33367628), (7, 23834020), (10, 16683814), (14, 11917010), (20, 8341907), (28, 5958505), (35, 4766804), (49, 3404860), (70, 2383402), (98, 1702430), (140, 1191701), (196, 851215), (245, 680972), (490, 340486), (980, 170243)]