51642620

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{269}}^1\times {\mathrm{331}}^1$

素因数の和:638

約数の個数: 48

約数和(自身を含む): 112946400

約数和(自身を除く): 61303780

約数列:

[1, 2, 4, 5, 10, 20, 29, 58, 116, 145, 269, 290, 331, 538, 580, 662, 1076, 1324, 1345, 1655, 2690, 3310, 5380, 6620, 7801, 9599, 15602, 19198, 31204, 38396, 39005, 47995, 78010, 89039, 95990, 156020, 178078, 191980, 356156, 445195, 890390, 1780780, 2582131, 5164262, 10328524, 12910655, 25821310, 51642620]

約数ペア:

[(1, 51642620), (2, 25821310), (4, 12910655), (5, 10328524), (10, 5164262), (20, 2582131), (29, 1780780), (58, 890390), (116, 445195), (145, 356156), (269, 191980), (290, 178078), (331, 156020), (538, 95990), (580, 89039), (662, 78010), (1076, 47995), (1324, 39005), (1345, 38396), (1655, 31204), (2690, 19198), (3310, 15602), (5380, 9599), (6620, 7801)]