721000764

素因数分解:

$2^2\times 3^4\times {\mathrm{11}}^2\times {\mathrm{53}}^1\times {\mathrm{347}}^1$

素因数の和:438

約数の個数: 180

約数和(自身を含む): 2116937592

約数和(自身を除く): 1395936828

約数列:

[1, 2, 3, 4, 6, 9, 11, 12, 18, 22, 27, 33, 36, 44, 53, 54, 66, 81, 99, 106, 108, 121, 132, 159, 162, 198, 212, 242, 297, 318, 324, 347, 363, 396, 477, 484, 583, 594, 636, 694, 726, 891, 954, 1041, 1089, 1166, 1188, 1388, 1431, 1452, 1749, 1782, 1908, 2082, 2178, 2332, 2862, 3123, 3267, 3498, 3564, 3817, 4164, 4293, 4356, 5247, 5724, 6246, 6413, 6534, 6996, 7634, 8586, 9369, 9801, 10494, 11451, 12492, 12826, 13068, 15268, 15741, 17172, 18391, 18738, 19239, 19602, 20988, 22902, 25652, 28107, 31482, 34353, 36782, 37476, 38478, 39204, 41987, 45804, 47223, 55173, 56214, 57717, 62964, 68706, 73564, 76956, 83974, 94446, 103059, 110346, 112428, 115434, 125961, 137412, 165519, 167948, 173151, 188892, 202301, 206118, 220692, 230868, 251922, 309177, 331038, 346302, 377883, 404602, 412236, 496557, 503844, 519453, 606903, 618354, 662076, 692604, 755766, 809204, 993114, 1038906, 1133649, 1213806, 1236708, 1489671, 1511532, 1820709, 1986228, 2077812, 2225311, 2267298, 2427612, 2979342, 3400947, 3641418, 4450622, 4534596, 5462127, 5958684, 6675933, 6801894, 7282836, 8901244, 10924254, 13351866, 13603788, 16386381, 20027799, 21848508, 26703732, 32772762, 40055598, 60083397, 65545524, 80111196, 120166794, 180250191, 240333588, 360500382, 721000764]

約数ペア:

[(1, 721000764), (2, 360500382), (3, 240333588), (4, 180250191), (6, 120166794), (9, 80111196), (11, 65545524), (12, 60083397), (18, 40055598), (22, 32772762), (27, 26703732), (33, 21848508), (36, 20027799), (44, 16386381), (53, 13603788), (54, 13351866), (66, 10924254), (81, 8901244), (99, 7282836), (106, 6801894), (108, 6675933), (121, 5958684), (132, 5462127), (159, 4534596), (162, 4450622), (198, 3641418), (212, 3400947), (242, 2979342), (297, 2427612), (318, 2267298), (324, 2225311), (347, 2077812), (363, 1986228), (396, 1820709), (477, 1511532), (484, 1489671), (583, 1236708), (594, 1213806), (636, 1133649), (694, 1038906), (726, 993114), (891, 809204), (954, 755766), (1041, 692604), (1089, 662076), (1166, 618354), (1188, 606903), (1388, 519453), (1431, 503844), (1452, 496557), (1749, 412236), (1782, 404602), (1908, 377883), (2082, 346302), (2178, 331038), (2332, 309177), (2862, 251922), (3123, 230868), (3267, 220692), (3498, 206118), (3564, 202301), (3817, 188892), (4164, 173151), (4293, 167948), (4356, 165519), (5247, 137412), (5724, 125961), (6246, 115434), (6413, 112428), (6534, 110346), (6996, 103059), (7634, 94446), (8586, 83974), (9369, 76956), (9801, 73564), (10494, 68706), (11451, 62964), (12492, 57717), (12826, 56214), (13068, 55173), (15268, 47223), (15741, 45804), (17172, 41987), (18391, 39204), (18738, 38478), (19239, 37476), (19602, 36782), (20988, 34353), (22902, 31482), (25652, 28107)]