251811180

素因数分解:

$2^2\times 3^8\times 5^1\times {\mathrm{19}}^1\times {\mathrm{101}}^1$

素因数の和:153

約数の個数: 216

約数和(自身を含む): 843176880

約数和(自身を除く): 591365700

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 19, 20, 27, 30, 36, 38, 45, 54, 57, 60, 76, 81, 90, 95, 101, 108, 114, 135, 162, 171, 180, 190, 202, 228, 243, 270, 285, 303, 324, 342, 380, 404, 405, 486, 505, 513, 540, 570, 606, 684, 729, 810, 855, 909, 972, 1010, 1026, 1140, 1212, 1215, 1458, 1515, 1539, 1620, 1710, 1818, 1919, 2020, 2052, 2187, 2430, 2565, 2727, 2916, 3030, 3078, 3420, 3636, 3645, 3838, 4374, 4545, 4617, 4860, 5130, 5454, 5757, 6060, 6156, 6561, 7290, 7676, 7695, 8181, 8748, 9090, 9234, 9595, 10260, 10908, 10935, 11514, 13122, 13635, 13851, 14580, 15390, 16362, 17271, 18180, 18468, 19190, 21870, 23028, 23085, 24543, 26244, 27270, 27702, 28785, 30780, 32724, 32805, 34542, 38380, 40905, 41553, 43740, 46170, 49086, 51813, 54540, 55404, 57570, 65610, 69084, 69255, 73629, 81810, 83106, 86355, 92340, 98172, 103626, 115140, 122715, 124659, 131220, 138510, 147258, 155439, 163620, 166212, 172710, 207252, 207765, 220887, 245430, 249318, 259065, 277020, 294516, 310878, 345420, 368145, 415530, 441774, 466317, 490860, 498636, 518130, 621756, 623295, 662661, 736290, 777195, 831060, 883548, 932634, 1036260, 1104435, 1246590, 1325322, 1398951, 1472580, 1554390, 1865268, 2208870, 2331585, 2493180, 2650644, 2797902, 3108780, 3313305, 4196853, 4417740, 4663170, 5595804, 6626610, 6994755, 8393706, 9326340, 12590559, 13253220, 13989510, 16787412, 20984265, 25181118, 27979020, 41968530, 50362236, 62952795, 83937060, 125905590, 251811180]

約数ペア:

[(1, 251811180), (2, 125905590), (3, 83937060), (4, 62952795), (5, 50362236), (6, 41968530), (9, 27979020), (10, 25181118), (12, 20984265), (15, 16787412), (18, 13989510), (19, 13253220), (20, 12590559), (27, 9326340), (30, 8393706), (36, 6994755), (38, 6626610), (45, 5595804), (54, 4663170), (57, 4417740), (60, 4196853), (76, 3313305), (81, 3108780), (90, 2797902), (95, 2650644), (101, 2493180), (108, 2331585), (114, 2208870), (135, 1865268), (162, 1554390), (171, 1472580), (180, 1398951), (190, 1325322), (202, 1246590), (228, 1104435), (243, 1036260), (270, 932634), (285, 883548), (303, 831060), (324, 777195), (342, 736290), (380, 662661), (404, 623295), (405, 621756), (486, 518130), (505, 498636), (513, 490860), (540, 466317), (570, 441774), (606, 415530), (684, 368145), (729, 345420), (810, 310878), (855, 294516), (909, 277020), (972, 259065), (1010, 249318), (1026, 245430), (1140, 220887), (1212, 207765), (1215, 207252), (1458, 172710), (1515, 166212), (1539, 163620), (1620, 155439), (1710, 147258), (1818, 138510), (1919, 131220), (2020, 124659), (2052, 122715), (2187, 115140), (2430, 103626), (2565, 98172), (2727, 92340), (2916, 86355), (3030, 83106), (3078, 81810), (3420, 73629), (3636, 69255), (3645, 69084), (3838, 65610), (4374, 57570), (4545, 55404), (4617, 54540), (4860, 51813), (5130, 49086), (5454, 46170), (5757, 43740), (6060, 41553), (6156, 40905), (6561, 38380), (7290, 34542), (7676, 32805), (7695, 32724), (8181, 30780), (8748, 28785), (9090, 27702), (9234, 27270), (9595, 26244), (10260, 24543), (10908, 23085), (10935, 23028), (11514, 21870), (13122, 19190), (13635, 18468), (13851, 18180), (14580, 17271), (15390, 16362)]