171911120

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{103}}^1\times {\mathrm{673}}^1$

素因数の和:820

約数の個数: 80

約数和(自身を含む): 417211392

約数和(自身を除く): 245300272

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 80, 103, 124, 155, 206, 248, 310, 412, 496, 515, 620, 673, 824, 1030, 1240, 1346, 1648, 2060, 2480, 2692, 3193, 3365, 4120, 5384, 6386, 6730, 8240, 10768, 12772, 13460, 15965, 20863, 25544, 26920, 31930, 41726, 51088, 53840, 63860, 69319, 83452, 104315, 127720, 138638, 166904, 208630, 255440, 277276, 333808, 346595, 417260, 554552, 693190, 834520, 1109104, 1386380, 1669040, 2148889, 2772760, 4297778, 5545520, 8595556, 10744445, 17191112, 21488890, 34382224, 42977780, 85955560, 171911120]

約数ペア:

[(1, 171911120), (2, 85955560), (4, 42977780), (5, 34382224), (8, 21488890), (10, 17191112), (16, 10744445), (20, 8595556), (31, 5545520), (40, 4297778), (62, 2772760), (80, 2148889), (103, 1669040), (124, 1386380), (155, 1109104), (206, 834520), (248, 693190), (310, 554552), (412, 417260), (496, 346595), (515, 333808), (620, 277276), (673, 255440), (824, 208630), (1030, 166904), (1240, 138638), (1346, 127720), (1648, 104315), (2060, 83452), (2480, 69319), (2692, 63860), (3193, 53840), (3365, 51088), (4120, 41726), (5384, 31930), (6386, 26920), (6730, 25544), (8240, 20863), (10768, 15965), (12772, 13460)]