990097940

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{151}}^1\times {\mathrm{25219}}^1$

素因数の和:25392

約数の個数: 48

約数和(自身を含む): 2254062720

約数和(自身を除く): 1263964780

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 151, 260, 302, 604, 755, 1510, 1963, 3020, 3926, 7852, 9815, 19630, 25219, 39260, 50438, 100876, 126095, 252190, 327847, 504380, 655694, 1311388, 1639235, 3278470, 3808069, 6556940, 7616138, 15232276, 19040345, 38080690, 49504897, 76161380, 99009794, 198019588, 247524485, 495048970, 990097940]

約数ペア:

[(1, 990097940), (2, 495048970), (4, 247524485), (5, 198019588), (10, 99009794), (13, 76161380), (20, 49504897), (26, 38080690), (52, 19040345), (65, 15232276), (130, 7616138), (151, 6556940), (260, 3808069), (302, 3278470), (604, 1639235), (755, 1311388), (1510, 655694), (1963, 504380), (3020, 327847), (3926, 252190), (7852, 126095), (9815, 100876), (19630, 50438), (25219, 39260)]