16439940

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^2\times {\mathrm{23}}^1$

素因数の和:87

約数の個数: 216

約数和(自身を含む): 59911488

約数和(自身を除く): 43471548

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 11, 12, 15, 18, 19, 20, 22, 23, 30, 33, 36, 38, 44, 45, 46, 55, 57, 60, 66, 69, 76, 90, 92, 95, 99, 110, 114, 115, 132, 138, 165, 171, 180, 190, 198, 207, 209, 220, 228, 230, 253, 276, 285, 330, 342, 345, 361, 380, 396, 414, 418, 437, 460, 495, 506, 570, 627, 660, 684, 690, 722, 759, 828, 836, 855, 874, 990, 1012, 1035, 1045, 1083, 1140, 1254, 1265, 1311, 1380, 1444, 1518, 1710, 1748, 1805, 1881, 1980, 2070, 2090, 2166, 2185, 2277, 2508, 2530, 2622, 3036, 3135, 3249, 3420, 3610, 3762, 3795, 3933, 3971, 4140, 4180, 4332, 4370, 4554, 4807, 5060, 5244, 5415, 6270, 6498, 6555, 7220, 7524, 7590, 7866, 7942, 8303, 8740, 9108, 9405, 9614, 10830, 11385, 11913, 12540, 12996, 13110, 14421, 15180, 15732, 15884, 16245, 16606, 18810, 19228, 19665, 19855, 21660, 22770, 23826, 24035, 24909, 26220, 28842, 32490, 33212, 35739, 37620, 39330, 39710, 41515, 43263, 45540, 47652, 48070, 49818, 57684, 59565, 64980, 71478, 72105, 74727, 78660, 79420, 83030, 86526, 91333, 96140, 99636, 119130, 124545, 142956, 144210, 149454, 166060, 173052, 178695, 182666, 216315, 238260, 249090, 273999, 288420, 298908, 357390, 365332, 373635, 432630, 456665, 498180, 547998, 714780, 747270, 821997, 865260, 913330, 1095996, 1369995, 1494540, 1643994, 1826660, 2739990, 3287988, 4109985, 5479980, 8219970, 16439940]

約数ペア:

[(1, 16439940), (2, 8219970), (3, 5479980), (4, 4109985), (5, 3287988), (6, 2739990), (9, 1826660), (10, 1643994), (11, 1494540), (12, 1369995), (15, 1095996), (18, 913330), (19, 865260), (20, 821997), (22, 747270), (23, 714780), (30, 547998), (33, 498180), (36, 456665), (38, 432630), (44, 373635), (45, 365332), (46, 357390), (55, 298908), (57, 288420), (60, 273999), (66, 249090), (69, 238260), (76, 216315), (90, 182666), (92, 178695), (95, 173052), (99, 166060), (110, 149454), (114, 144210), (115, 142956), (132, 124545), (138, 119130), (165, 99636), (171, 96140), (180, 91333), (190, 86526), (198, 83030), (207, 79420), (209, 78660), (220, 74727), (228, 72105), (230, 71478), (253, 64980), (276, 59565), (285, 57684), (330, 49818), (342, 48070), (345, 47652), (361, 45540), (380, 43263), (396, 41515), (414, 39710), (418, 39330), (437, 37620), (460, 35739), (495, 33212), (506, 32490), (570, 28842), (627, 26220), (660, 24909), (684, 24035), (690, 23826), (722, 22770), (759, 21660), (828, 19855), (836, 19665), (855, 19228), (874, 18810), (990, 16606), (1012, 16245), (1035, 15884), (1045, 15732), (1083, 15180), (1140, 14421), (1254, 13110), (1265, 12996), (1311, 12540), (1380, 11913), (1444, 11385), (1518, 10830), (1710, 9614), (1748, 9405), (1805, 9108), (1881, 8740), (1980, 8303), (2070, 7942), (2090, 7866), (2166, 7590), (2185, 7524), (2277, 7220), (2508, 6555), (2530, 6498), (2622, 6270), (3036, 5415), (3135, 5244), (3249, 5060), (3420, 4807), (3610, 4554), (3762, 4370), (3795, 4332), (3933, 4180), (3971, 4140)]