7973940

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{10223}}^1$

素因数の和:10248

約数の個数: 48

約数和(自身を含む): 24046848

約数和(自身を除く): 16072908

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 26, 30, 39, 52, 60, 65, 78, 130, 156, 195, 260, 390, 780, 10223, 20446, 30669, 40892, 51115, 61338, 102230, 122676, 132899, 153345, 204460, 265798, 306690, 398697, 531596, 613380, 664495, 797394, 1328990, 1594788, 1993485, 2657980, 3986970, 7973940]

約数ペア:

[(1, 7973940), (2, 3986970), (3, 2657980), (4, 1993485), (5, 1594788), (6, 1328990), (10, 797394), (12, 664495), (13, 613380), (15, 531596), (20, 398697), (26, 306690), (30, 265798), (39, 204460), (52, 153345), (60, 132899), (65, 122676), (78, 102230), (130, 61338), (156, 51115), (195, 40892), (260, 30669), (390, 20446), (780, 10223)]