169848380

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^2\times {\mathrm{31}}^1\times {\mathrm{1621}}^1$

素因数の和:1687

約数の個数: 72

約数和(自身を含む): 398934144

約数和(自身を除く): 229085764

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 31, 52, 62, 65, 124, 130, 155, 169, 260, 310, 338, 403, 620, 676, 806, 845, 1612, 1621, 1690, 2015, 3242, 3380, 4030, 5239, 6484, 8060, 8105, 10478, 16210, 20956, 21073, 26195, 32420, 42146, 50251, 52390, 84292, 100502, 104780, 105365, 201004, 210730, 251255, 273949, 421460, 502510, 547898, 653263, 1005020, 1095796, 1306526, 1369745, 2613052, 2739490, 3266315, 5478980, 6532630, 8492419, 13065260, 16984838, 33969676, 42462095, 84924190, 169848380]

約数ペア:

[(1, 169848380), (2, 84924190), (4, 42462095), (5, 33969676), (10, 16984838), (13, 13065260), (20, 8492419), (26, 6532630), (31, 5478980), (52, 3266315), (62, 2739490), (65, 2613052), (124, 1369745), (130, 1306526), (155, 1095796), (169, 1005020), (260, 653263), (310, 547898), (338, 502510), (403, 421460), (620, 273949), (676, 251255), (806, 210730), (845, 201004), (1612, 105365), (1621, 104780), (1690, 100502), (2015, 84292), (3242, 52390), (3380, 50251), (4030, 42146), (5239, 32420), (6484, 26195), (8060, 21073), (8105, 20956), (10478, 16210)]