1328804540

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{1355923}}^1$

素因数の和:1355946

約数の個数: 36

約数和(自身を含む): 3246082056

約数和(自身を除く): 1917277516

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 490, 980, 1355923, 2711846, 5423692, 6779615, 9491461, 13559230, 18982922, 27118460, 37965844, 47457305, 66440227, 94914610, 132880454, 189829220, 265760908, 332201135, 664402270, 1328804540]

約数ペア:

[(1, 1328804540), (2, 664402270), (4, 332201135), (5, 265760908), (7, 189829220), (10, 132880454), (14, 94914610), (20, 66440227), (28, 47457305), (35, 37965844), (49, 27118460), (70, 18982922), (98, 13559230), (140, 9491461), (196, 6779615), (245, 5423692), (490, 2711846), (980, 1355923)]