81177460

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{13}}^2\times {\mathrm{47}}^1\times {\mathrm{73}}^1$

素因数の和:162

約数の個数: 144

約数和(自身を含む): 218405376

約数和(自身を除く): 137227916

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 20, 26, 28, 35, 47, 52, 65, 70, 73, 91, 94, 130, 140, 146, 169, 182, 188, 235, 260, 292, 329, 338, 364, 365, 455, 470, 511, 611, 658, 676, 730, 845, 910, 940, 949, 1022, 1183, 1222, 1316, 1460, 1645, 1690, 1820, 1898, 2044, 2366, 2444, 2555, 3055, 3290, 3380, 3431, 3796, 4277, 4732, 4745, 5110, 5915, 6110, 6580, 6643, 6862, 7943, 8554, 9490, 10220, 11830, 12220, 12337, 13286, 13724, 15886, 17108, 17155, 18980, 21385, 23660, 24017, 24674, 26572, 31772, 33215, 34310, 39715, 42770, 44603, 48034, 49348, 55601, 61685, 66430, 68620, 79430, 85540, 86359, 89206, 96068, 111202, 120085, 123370, 132860, 158860, 172718, 178412, 222404, 223015, 240170, 246740, 278005, 312221, 345436, 431795, 446030, 480340, 556010, 579839, 624442, 863590, 892060, 1112020, 1159678, 1248884, 1561105, 1727180, 2319356, 2899195, 3122210, 4058873, 5798390, 6244420, 8117746, 11596780, 16235492, 20294365, 40588730, 81177460]

約数ペア:

[(1, 81177460), (2, 40588730), (4, 20294365), (5, 16235492), (7, 11596780), (10, 8117746), (13, 6244420), (14, 5798390), (20, 4058873), (26, 3122210), (28, 2899195), (35, 2319356), (47, 1727180), (52, 1561105), (65, 1248884), (70, 1159678), (73, 1112020), (91, 892060), (94, 863590), (130, 624442), (140, 579839), (146, 556010), (169, 480340), (182, 446030), (188, 431795), (235, 345436), (260, 312221), (292, 278005), (329, 246740), (338, 240170), (364, 223015), (365, 222404), (455, 178412), (470, 172718), (511, 158860), (611, 132860), (658, 123370), (676, 120085), (730, 111202), (845, 96068), (910, 89206), (940, 86359), (949, 85540), (1022, 79430), (1183, 68620), (1222, 66430), (1316, 61685), (1460, 55601), (1645, 49348), (1690, 48034), (1820, 44603), (1898, 42770), (2044, 39715), (2366, 34310), (2444, 33215), (2555, 31772), (3055, 26572), (3290, 24674), (3380, 24017), (3431, 23660), (3796, 21385), (4277, 18980), (4732, 17155), (4745, 17108), (5110, 15886), (5915, 13724), (6110, 13286), (6580, 12337), (6643, 12220), (6862, 11830), (7943, 10220), (8554, 9490)]