211591120

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{6563}}^1$

素因数の和:6620

約数の個数: 80

約数和(自身を含む): 546964992

約数和(自身を除く): 335373872

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 31, 40, 52, 62, 65, 80, 104, 124, 130, 155, 208, 248, 260, 310, 403, 496, 520, 620, 806, 1040, 1240, 1612, 2015, 2480, 3224, 4030, 6448, 6563, 8060, 13126, 16120, 26252, 32240, 32815, 52504, 65630, 85319, 105008, 131260, 170638, 203453, 262520, 341276, 406906, 426595, 525040, 682552, 813812, 853190, 1017265, 1365104, 1627624, 1706380, 2034530, 2644889, 3255248, 3412760, 4069060, 5289778, 6825520, 8138120, 10579556, 13224445, 16276240, 21159112, 26448890, 42318224, 52897780, 105795560, 211591120]

約数ペア:

[(1, 211591120), (2, 105795560), (4, 52897780), (5, 42318224), (8, 26448890), (10, 21159112), (13, 16276240), (16, 13224445), (20, 10579556), (26, 8138120), (31, 6825520), (40, 5289778), (52, 4069060), (62, 3412760), (65, 3255248), (80, 2644889), (104, 2034530), (124, 1706380), (130, 1627624), (155, 1365104), (208, 1017265), (248, 853190), (260, 813812), (310, 682552), (403, 525040), (496, 426595), (520, 406906), (620, 341276), (806, 262520), (1040, 203453), (1240, 170638), (1612, 131260), (2015, 105008), (2480, 85319), (3224, 65630), (4030, 52504), (6448, 32815), (6563, 32240), (8060, 26252), (13126, 16120)]