354944620

素因数分解:

$2^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{181}}^1\times {\mathrm{1381}}^1$

素因数の和:1642

約数の個数: 48

約数和(自身を含む): 760608576

約数和(自身を除く): 405663956

約数列:

[1, 2, 4, 5, 10, 20, 71, 142, 181, 284, 355, 362, 710, 724, 905, 1381, 1420, 1810, 2762, 3620, 5524, 6905, 12851, 13810, 25702, 27620, 51404, 64255, 98051, 128510, 196102, 249961, 257020, 392204, 490255, 499922, 980510, 999844, 1249805, 1961020, 2499610, 4999220, 17747231, 35494462, 70988924, 88736155, 177472310, 354944620]

約数ペア:

[(1, 354944620), (2, 177472310), (4, 88736155), (5, 70988924), (10, 35494462), (20, 17747231), (71, 4999220), (142, 2499610), (181, 1961020), (284, 1249805), (355, 999844), (362, 980510), (710, 499922), (724, 490255), (905, 392204), (1381, 257020), (1420, 249961), (1810, 196102), (2762, 128510), (3620, 98051), (5524, 64255), (6905, 51404), (12851, 27620), (13810, 25702)]