398401860

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{288697}}^1$

素因数の和:288732

約数の個数: 48

約数和(自身を含む): 1164030336

約数和(自身を除く): 765628476

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 23, 30, 46, 60, 69, 92, 115, 138, 230, 276, 345, 460, 690, 1380, 288697, 577394, 866091, 1154788, 1443485, 1732182, 2886970, 3464364, 4330455, 5773940, 6640031, 8660910, 13280062, 17321820, 19920093, 26560124, 33200155, 39840186, 66400310, 79680372, 99600465, 132800620, 199200930, 398401860]

約数ペア:

[(1, 398401860), (2, 199200930), (3, 132800620), (4, 99600465), (5, 79680372), (6, 66400310), (10, 39840186), (12, 33200155), (15, 26560124), (20, 19920093), (23, 17321820), (30, 13280062), (46, 8660910), (60, 6640031), (69, 5773940), (92, 4330455), (115, 3464364), (138, 2886970), (230, 1732182), (276, 1443485), (345, 1154788), (460, 866091), (690, 577394), (1380, 288697)]