648383940

素因数分解:

$2^2\times 3^4\times 5^1\times {\mathrm{400237}}^1$

素因数の和:400258

約数の個数: 60

約数和(自身を含む): 2034009516

約数和(自身を除く): 1385625576

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 36, 45, 54, 60, 81, 90, 108, 135, 162, 180, 270, 324, 405, 540, 810, 1620, 400237, 800474, 1200711, 1600948, 2001185, 2401422, 3602133, 4002370, 4802844, 6003555, 7204266, 8004740, 10806399, 12007110, 14408532, 18010665, 21612798, 24014220, 32419197, 36021330, 43225596, 54031995, 64838394, 72042660, 108063990, 129676788, 162095985, 216127980, 324191970, 648383940]

約数ペア:

[(1, 648383940), (2, 324191970), (3, 216127980), (4, 162095985), (5, 129676788), (6, 108063990), (9, 72042660), (10, 64838394), (12, 54031995), (15, 43225596), (18, 36021330), (20, 32419197), (27, 24014220), (30, 21612798), (36, 18010665), (45, 14408532), (54, 12007110), (60, 10806399), (81, 8004740), (90, 7204266), (108, 6003555), (135, 4802844), (162, 4002370), (180, 3602133), (270, 2401422), (324, 2001185), (405, 1600948), (540, 1200711), (810, 800474), (1620, 400237)]