201609980

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{157}}^1\times {\mathrm{449}}^1$

素因数の和:639

約数の個数: 96

約数和(自身を含む): 501681600

約数和(自身を除く): 300071620

約数列:

[1, 2, 4, 5, 10, 11, 13, 20, 22, 26, 44, 52, 55, 65, 110, 130, 143, 157, 220, 260, 286, 314, 449, 572, 628, 715, 785, 898, 1430, 1570, 1727, 1796, 2041, 2245, 2860, 3140, 3454, 4082, 4490, 4939, 5837, 6908, 8164, 8635, 8980, 9878, 10205, 11674, 17270, 19756, 20410, 22451, 23348, 24695, 29185, 34540, 40820, 44902, 49390, 58370, 64207, 70493, 89804, 98780, 112255, 116740, 128414, 140986, 224510, 256828, 281972, 321035, 352465, 449020, 642070, 704930, 775423, 916409, 1284140, 1409860, 1550846, 1832818, 3101692, 3665636, 3877115, 4582045, 7754230, 9164090, 10080499, 15508460, 18328180, 20160998, 40321996, 50402495, 100804990, 201609980]

約数ペア:

[(1, 201609980), (2, 100804990), (4, 50402495), (5, 40321996), (10, 20160998), (11, 18328180), (13, 15508460), (20, 10080499), (22, 9164090), (26, 7754230), (44, 4582045), (52, 3877115), (55, 3665636), (65, 3101692), (110, 1832818), (130, 1550846), (143, 1409860), (157, 1284140), (220, 916409), (260, 775423), (286, 704930), (314, 642070), (449, 449020), (572, 352465), (628, 321035), (715, 281972), (785, 256828), (898, 224510), (1430, 140986), (1570, 128414), (1727, 116740), (1796, 112255), (2041, 98780), (2245, 89804), (2860, 70493), (3140, 64207), (3454, 58370), (4082, 49390), (4490, 44902), (4939, 40820), (5837, 34540), (6908, 29185), (8164, 24695), (8635, 23348), (8980, 22451), (9878, 20410), (10205, 19756), (11674, 17270)]