18874620

素因数分解:

$2^2\times 3^4\times 5^1\times {\mathrm{61}}^1\times {\mathrm{191}}^1$

素因数の和:273

約数の個数: 120

約数和(自身を含む): 60496128

約数和(自身を除く): 41621508

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 36, 45, 54, 60, 61, 81, 90, 108, 122, 135, 162, 180, 183, 191, 244, 270, 305, 324, 366, 382, 405, 540, 549, 573, 610, 732, 764, 810, 915, 955, 1098, 1146, 1220, 1620, 1647, 1719, 1830, 1910, 2196, 2292, 2745, 2865, 3294, 3438, 3660, 3820, 4941, 5157, 5490, 5730, 6588, 6876, 8235, 8595, 9882, 10314, 10980, 11460, 11651, 15471, 16470, 17190, 19764, 20628, 23302, 24705, 25785, 30942, 32940, 34380, 34953, 46604, 49410, 51570, 58255, 61884, 69906, 77355, 98820, 103140, 104859, 116510, 139812, 154710, 174765, 209718, 233020, 309420, 314577, 349530, 419436, 524295, 629154, 699060, 943731, 1048590, 1258308, 1572885, 1887462, 2097180, 3145770, 3774924, 4718655, 6291540, 9437310, 18874620]

約数ペア:

[(1, 18874620), (2, 9437310), (3, 6291540), (4, 4718655), (5, 3774924), (6, 3145770), (9, 2097180), (10, 1887462), (12, 1572885), (15, 1258308), (18, 1048590), (20, 943731), (27, 699060), (30, 629154), (36, 524295), (45, 419436), (54, 349530), (60, 314577), (61, 309420), (81, 233020), (90, 209718), (108, 174765), (122, 154710), (135, 139812), (162, 116510), (180, 104859), (183, 103140), (191, 98820), (244, 77355), (270, 69906), (305, 61884), (324, 58255), (366, 51570), (382, 49410), (405, 46604), (540, 34953), (549, 34380), (573, 32940), (610, 30942), (732, 25785), (764, 24705), (810, 23302), (915, 20628), (955, 19764), (1098, 17190), (1146, 16470), (1220, 15471), (1620, 11651), (1647, 11460), (1719, 10980), (1830, 10314), (1910, 9882), (2196, 8595), (2292, 8235), (2745, 6876), (2865, 6588), (3294, 5730), (3438, 5490), (3660, 5157), (3820, 4941)]