71000020

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{5573}}^1$

素因数の和:5609

約数の個数: 72

約数和(自身を含む): 186818184

約数和(自身を除く): 115818164

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, 5573, 6370, 11146, 12740, 22292, 27865, 39011, 55730, 72449, 78022, 111460, 144898, 156044, 195055, 273077, 289796, 362245, 390110, 507143, 546154, 724490, 780220, 1014286, 1092308, 1365385, 1448980, 2028572, 2535715, 2730770, 3550001, 5071430, 5461540, 7100002, 10142860, 14200004, 17750005, 35500010, 71000020]

約数ペア:

[(1, 71000020), (2, 35500010), (4, 17750005), (5, 14200004), (7, 10142860), (10, 7100002), (13, 5461540), (14, 5071430), (20, 3550001), (26, 2730770), (28, 2535715), (35, 2028572), (49, 1448980), (52, 1365385), (65, 1092308), (70, 1014286), (91, 780220), (98, 724490), (130, 546154), (140, 507143), (182, 390110), (196, 362245), (245, 289796), (260, 273077), (364, 195055), (455, 156044), (490, 144898), (637, 111460), (910, 78022), (980, 72449), (1274, 55730), (1820, 39011), (2548, 27865), (3185, 22292), (5573, 12740), (6370, 11146)]