140140

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1$

素因数の和:47

約数の個数: 72

約数和(自身を含む): 402192

約数和(自身を除く): 262052

約数列:

[1, 2, 4, 5, 7, 10, 11, 13, 14, 20, 22, 26, 28, 35, 44, 49, 52, 55, 65, 70, 77, 91, 98, 110, 130, 140, 143, 154, 182, 196, 220, 245, 260, 286, 308, 364, 385, 455, 490, 539, 572, 637, 715, 770, 910, 980, 1001, 1078, 1274, 1430, 1540, 1820, 2002, 2156, 2548, 2695, 2860, 3185, 4004, 5005, 5390, 6370, 7007, 10010, 10780, 12740, 14014, 20020, 28028, 35035, 70070, 140140]

約数ペア:

[(1, 140140), (2, 70070), (4, 35035), (5, 28028), (7, 20020), (10, 14014), (11, 12740), (13, 10780), (14, 10010), (20, 7007), (22, 6370), (26, 5390), (28, 5005), (35, 4004), (44, 3185), (49, 2860), (52, 2695), (55, 2548), (65, 2156), (70, 2002), (77, 1820), (91, 1540), (98, 1430), (110, 1274), (130, 1078), (140, 1001), (143, 980), (154, 910), (182, 770), (196, 715), (220, 637), (245, 572), (260, 539), (286, 490), (308, 455), (364, 385)]