390987376

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{60637}}^1$

素因数の和:60689

約数の個数: 40

約数和(自身を含む): 842140544

約数和(自身を除く): 451153168

約数列:

[1, 2, 4, 8, 13, 16, 26, 31, 52, 62, 104, 124, 208, 248, 403, 496, 806, 1612, 3224, 6448, 60637, 121274, 242548, 485096, 788281, 970192, 1576562, 1879747, 3153124, 3759494, 6306248, 7518988, 12612496, 15037976, 24436711, 30075952, 48873422, 97746844, 195493688, 390987376]

約数ペア:

[(1, 390987376), (2, 195493688), (4, 97746844), (8, 48873422), (13, 30075952), (16, 24436711), (26, 15037976), (31, 12612496), (52, 7518988), (62, 6306248), (104, 3759494), (124, 3153124), (208, 1879747), (248, 1576562), (403, 970192), (496, 788281), (806, 485096), (1612, 242548), (3224, 121274), (6448, 60637)]