256818870

素因数分解:

$2^1\times 3^3\times 5^1\times 7^1\times {\mathrm{11}}^2\times {\mathrm{1123}}^1$

素因数の和:1168

約数の個数: 192

約数和(自身を含む): 861073920

約数和(自身を除く): 604255050

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 11, 14, 15, 18, 21, 22, 27, 30, 33, 35, 42, 45, 54, 55, 63, 66, 70, 77, 90, 99, 105, 110, 121, 126, 135, 154, 165, 189, 198, 210, 231, 242, 270, 297, 315, 330, 363, 378, 385, 462, 495, 594, 605, 630, 693, 726, 770, 847, 945, 990, 1089, 1123, 1155, 1210, 1386, 1485, 1694, 1815, 1890, 2079, 2178, 2246, 2310, 2541, 2970, 3267, 3369, 3465, 3630, 4158, 4235, 5082, 5445, 5615, 6534, 6738, 6930, 7623, 7861, 8470, 10107, 10395, 10890, 11230, 12353, 12705, 15246, 15722, 16335, 16845, 20214, 20790, 22869, 23583, 24706, 25410, 30321, 32670, 33690, 37059, 38115, 39305, 45738, 47166, 50535, 60642, 61765, 70749, 74118, 76230, 78610, 86471, 101070, 111177, 114345, 117915, 123530, 135883, 141498, 151605, 172942, 185295, 212247, 222354, 228690, 235830, 259413, 271766, 303210, 333531, 353745, 370590, 407649, 424494, 432355, 518826, 555885, 667062, 679415, 707490, 778239, 815298, 864710, 951181, 1061235, 1111770, 1222947, 1297065, 1358830, 1556478, 1667655, 1902362, 2038245, 2122470, 2334717, 2445894, 2594130, 2853543, 3335310, 3668841, 3891195, 4076490, 4669434, 4755905, 5707086, 6114735, 7337682, 7782390, 8560629, 9511810, 11673585, 12229470, 14267715, 17121258, 18344205, 23347170, 25681887, 28535430, 36688410, 42803145, 51363774, 85606290, 128409435, 256818870]

約数ペア:

[(1, 256818870), (2, 128409435), (3, 85606290), (5, 51363774), (6, 42803145), (7, 36688410), (9, 28535430), (10, 25681887), (11, 23347170), (14, 18344205), (15, 17121258), (18, 14267715), (21, 12229470), (22, 11673585), (27, 9511810), (30, 8560629), (33, 7782390), (35, 7337682), (42, 6114735), (45, 5707086), (54, 4755905), (55, 4669434), (63, 4076490), (66, 3891195), (70, 3668841), (77, 3335310), (90, 2853543), (99, 2594130), (105, 2445894), (110, 2334717), (121, 2122470), (126, 2038245), (135, 1902362), (154, 1667655), (165, 1556478), (189, 1358830), (198, 1297065), (210, 1222947), (231, 1111770), (242, 1061235), (270, 951181), (297, 864710), (315, 815298), (330, 778239), (363, 707490), (378, 679415), (385, 667062), (462, 555885), (495, 518826), (594, 432355), (605, 424494), (630, 407649), (693, 370590), (726, 353745), (770, 333531), (847, 303210), (945, 271766), (990, 259413), (1089, 235830), (1123, 228690), (1155, 222354), (1210, 212247), (1386, 185295), (1485, 172942), (1694, 151605), (1815, 141498), (1890, 135883), (2079, 123530), (2178, 117915), (2246, 114345), (2310, 111177), (2541, 101070), (2970, 86471), (3267, 78610), (3369, 76230), (3465, 74118), (3630, 70749), (4158, 61765), (4235, 60642), (5082, 50535), (5445, 47166), (5615, 45738), (6534, 39305), (6738, 38115), (6930, 37059), (7623, 33690), (7861, 32670), (8470, 30321), (10107, 25410), (10395, 24706), (10890, 23583), (11230, 22869), (12353, 20790), (12705, 20214), (15246, 16845), (15722, 16335)]