66642940

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{5231}}^1$

素因数の和:5267

約数の個数: 72

約数和(自身を含む): 175355712

約数和(自身を除く): 108712772

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 20, 26, 28, 35, 49, 52, 65, 70, 91, 98, 130, 140, 182, 196, 245, 260, 364, 455, 490, 637, 910, 980, 1274, 1820, 2548, 3185, 5231, 6370, 10462, 12740, 20924, 26155, 36617, 52310, 68003, 73234, 104620, 136006, 146468, 183085, 256319, 272012, 340015, 366170, 476021, 512638, 680030, 732340, 952042, 1025276, 1281595, 1360060, 1904084, 2380105, 2563190, 3332147, 4760210, 5126380, 6664294, 9520420, 13328588, 16660735, 33321470, 66642940]

約数ペア:

[(1, 66642940), (2, 33321470), (4, 16660735), (5, 13328588), (7, 9520420), (10, 6664294), (13, 5126380), (14, 4760210), (20, 3332147), (26, 2563190), (28, 2380105), (35, 1904084), (49, 1360060), (52, 1281595), (65, 1025276), (70, 952042), (91, 732340), (98, 680030), (130, 512638), (140, 476021), (182, 366170), (196, 340015), (245, 272012), (260, 256319), (364, 183085), (455, 146468), (490, 136006), (637, 104620), (910, 73234), (980, 68003), (1274, 52310), (1820, 36617), (2548, 26155), (3185, 20924), (5231, 12740), (6370, 10462)]