66704560

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{2069}}^1$

素因数の和:2126

約数の個数: 80

約数和(自身を含む): 172488960

約数和(自身を除く): 105784400

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, 2069, 2480, 3224, 4030, 4138, 6448, 8060, 8276, 10345, 16120, 16552, 20690, 26897, 32240, 33104, 41380, 53794, 64139, 82760, 107588, 128278, 134485, 165520, 215176, 256556, 268970, 320695, 430352, 513112, 537940, 641390, 833807, 1026224, 1075880, 1282780, 1667614, 2151760, 2565560, 3335228, 4169035, 5131120, 6670456, 8338070, 13340912, 16676140, 33352280, 66704560]

約数ペア:

[(1, 66704560), (2, 33352280), (4, 16676140), (5, 13340912), (8, 8338070), (10, 6670456), (13, 5131120), (16, 4169035), (20, 3335228), (26, 2565560), (31, 2151760), (40, 1667614), (52, 1282780), (62, 1075880), (65, 1026224), (80, 833807), (104, 641390), (124, 537940), (130, 513112), (155, 430352), (208, 320695), (248, 268970), (260, 256556), (310, 215176), (403, 165520), (496, 134485), (520, 128278), (620, 107588), (806, 82760), (1040, 64139), (1240, 53794), (1612, 41380), (2015, 33104), (2069, 32240), (2480, 26897), (3224, 20690), (4030, 16552), (4138, 16120), (6448, 10345), (8060, 8276)]