20603970

素因数分解:

$2^1\times 3^5\times 5^1\times {\mathrm{61}}^1\times {\mathrm{139}}^1$

素因数の和:222

約数の個数: 96

約数和(自身を含む): 56871360

約数和(自身を除く): 36267390

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 27, 30, 45, 54, 61, 81, 90, 122, 135, 139, 162, 183, 243, 270, 278, 305, 366, 405, 417, 486, 549, 610, 695, 810, 834, 915, 1098, 1215, 1251, 1390, 1647, 1830, 2085, 2430, 2502, 2745, 3294, 3753, 4170, 4941, 5490, 6255, 7506, 8235, 8479, 9882, 11259, 12510, 14823, 16470, 16958, 18765, 22518, 24705, 25437, 29646, 33777, 37530, 42395, 49410, 50874, 56295, 67554, 74115, 76311, 84790, 112590, 127185, 148230, 152622, 168885, 228933, 254370, 337770, 381555, 457866, 686799, 763110, 1144665, 1373598, 2060397, 2289330, 3433995, 4120794, 6867990, 10301985, 20603970]

約数ペア:

[(1, 20603970), (2, 10301985), (3, 6867990), (5, 4120794), (6, 3433995), (9, 2289330), (10, 2060397), (15, 1373598), (18, 1144665), (27, 763110), (30, 686799), (45, 457866), (54, 381555), (61, 337770), (81, 254370), (90, 228933), (122, 168885), (135, 152622), (139, 148230), (162, 127185), (183, 112590), (243, 84790), (270, 76311), (278, 74115), (305, 67554), (366, 56295), (405, 50874), (417, 49410), (486, 42395), (549, 37530), (610, 33777), (695, 29646), (810, 25437), (834, 24705), (915, 22518), (1098, 18765), (1215, 16958), (1251, 16470), (1390, 14823), (1647, 12510), (1830, 11259), (2085, 9882), (2430, 8479), (2502, 8235), (2745, 7506), (3294, 6255), (3753, 5490), (4170, 4941)]