165521720

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{1229}}^1$

素因数の和:1297

約数の個数: 128

約数和(自身を含む): 471139200

約数和(自身を除く): 305617480

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 20, 26, 28, 35, 37, 40, 52, 56, 65, 70, 74, 91, 104, 130, 140, 148, 182, 185, 259, 260, 280, 296, 364, 370, 455, 481, 518, 520, 728, 740, 910, 962, 1036, 1229, 1295, 1480, 1820, 1924, 2072, 2405, 2458, 2590, 3367, 3640, 3848, 4810, 4916, 5180, 6145, 6734, 8603, 9620, 9832, 10360, 12290, 13468, 15977, 16835, 17206, 19240, 24580, 26936, 31954, 33670, 34412, 43015, 45473, 49160, 63908, 67340, 68824, 79885, 86030, 90946, 111839, 127816, 134680, 159770, 172060, 181892, 223678, 227365, 318311, 319540, 344120, 363784, 447356, 454730, 559195, 591149, 636622, 639080, 894712, 909460, 1118390, 1182298, 1273244, 1591555, 1818920, 2236780, 2364596, 2546488, 2955745, 3183110, 4138043, 4473560, 4729192, 5911490, 6366220, 8276086, 11822980, 12732440, 16552172, 20690215, 23645960, 33104344, 41380430, 82760860, 165521720]

約数ペア:

[(1, 165521720), (2, 82760860), (4, 41380430), (5, 33104344), (7, 23645960), (8, 20690215), (10, 16552172), (13, 12732440), (14, 11822980), (20, 8276086), (26, 6366220), (28, 5911490), (35, 4729192), (37, 4473560), (40, 4138043), (52, 3183110), (56, 2955745), (65, 2546488), (70, 2364596), (74, 2236780), (91, 1818920), (104, 1591555), (130, 1273244), (140, 1182298), (148, 1118390), (182, 909460), (185, 894712), (259, 639080), (260, 636622), (280, 591149), (296, 559195), (364, 454730), (370, 447356), (455, 363784), (481, 344120), (518, 319540), (520, 318311), (728, 227365), (740, 223678), (910, 181892), (962, 172060), (1036, 159770), (1229, 134680), (1295, 127816), (1480, 111839), (1820, 90946), (1924, 86030), (2072, 79885), (2405, 68824), (2458, 67340), (2590, 63908), (3367, 49160), (3640, 45473), (3848, 43015), (4810, 34412), (4916, 33670), (5180, 31954), (6145, 26936), (6734, 24580), (8603, 19240), (9620, 17206), (9832, 16835), (10360, 15977), (12290, 13468)]