61618140

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{419}}^1$

素因数の和:496

約数の個数: 144

約数和(自身を含む): 201801600

約数和(自身を除く): 140183460

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 19, 20, 30, 36, 38, 43, 45, 57, 60, 76, 86, 90, 95, 114, 129, 171, 172, 180, 190, 215, 228, 258, 285, 342, 380, 387, 419, 430, 516, 570, 645, 684, 774, 817, 838, 855, 860, 1140, 1257, 1290, 1548, 1634, 1676, 1710, 1935, 2095, 2451, 2514, 2580, 3268, 3420, 3771, 3870, 4085, 4190, 4902, 5028, 6285, 7353, 7542, 7740, 7961, 8170, 8380, 9804, 12255, 12570, 14706, 15084, 15922, 16340, 18017, 18855, 23883, 24510, 25140, 29412, 31844, 36034, 36765, 37710, 39805, 47766, 49020, 54051, 71649, 72068, 73530, 75420, 79610, 90085, 95532, 108102, 119415, 143298, 147060, 159220, 162153, 180170, 216204, 238830, 270255, 286596, 324306, 342323, 358245, 360340, 477660, 540510, 648612, 684646, 716490, 810765, 1026969, 1081020, 1369292, 1432980, 1621530, 1711615, 2053938, 3080907, 3243060, 3423230, 4107876, 5134845, 6161814, 6846460, 10269690, 12323628, 15404535, 20539380, 30809070, 61618140]

約数ペア:

[(1, 61618140), (2, 30809070), (3, 20539380), (4, 15404535), (5, 12323628), (6, 10269690), (9, 6846460), (10, 6161814), (12, 5134845), (15, 4107876), (18, 3423230), (19, 3243060), (20, 3080907), (30, 2053938), (36, 1711615), (38, 1621530), (43, 1432980), (45, 1369292), (57, 1081020), (60, 1026969), (76, 810765), (86, 716490), (90, 684646), (95, 648612), (114, 540510), (129, 477660), (171, 360340), (172, 358245), (180, 342323), (190, 324306), (215, 286596), (228, 270255), (258, 238830), (285, 216204), (342, 180170), (380, 162153), (387, 159220), (419, 147060), (430, 143298), (516, 119415), (570, 108102), (645, 95532), (684, 90085), (774, 79610), (817, 75420), (838, 73530), (855, 72068), (860, 71649), (1140, 54051), (1257, 49020), (1290, 47766), (1548, 39805), (1634, 37710), (1676, 36765), (1710, 36034), (1935, 31844), (2095, 29412), (2451, 25140), (2514, 24510), (2580, 23883), (3268, 18855), (3420, 18017), (3771, 16340), (3870, 15922), (4085, 15084), (4190, 14706), (4902, 12570), (5028, 12255), (6285, 9804), (7353, 8380), (7542, 8170), (7740, 7961)]