87660560

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{2719}}^1$

素因数の和:2776

約数の個数: 80

約数和(自身を含む): 226652160

約数和(自身を除く): 138991600

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, 2719, 3224, 4030, 5438, 6448, 8060, 10876, 13595, 16120, 21752, 27190, 32240, 35347, 43504, 54380, 70694, 84289, 108760, 141388, 168578, 176735, 217520, 282776, 337156, 353470, 421445, 565552, 674312, 706940, 842890, 1095757, 1348624, 1413880, 1685780, 2191514, 2827760, 3371560, 4383028, 5478785, 6743120, 8766056, 10957570, 17532112, 21915140, 43830280, 87660560]

約数ペア:

[(1, 87660560), (2, 43830280), (4, 21915140), (5, 17532112), (8, 10957570), (10, 8766056), (13, 6743120), (16, 5478785), (20, 4383028), (26, 3371560), (31, 2827760), (40, 2191514), (52, 1685780), (62, 1413880), (65, 1348624), (80, 1095757), (104, 842890), (124, 706940), (130, 674312), (155, 565552), (208, 421445), (248, 353470), (260, 337156), (310, 282776), (403, 217520), (496, 176735), (520, 168578), (620, 141388), (806, 108760), (1040, 84289), (1240, 70694), (1612, 54380), (2015, 43504), (2480, 35347), (2719, 32240), (3224, 27190), (4030, 21752), (5438, 16120), (6448, 13595), (8060, 10876)]