219908660

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{53}}^1\times {\mathrm{61}}^1\times {\mathrm{179}}^1$

素因数の和:321

約数の個数: 96

約数和(自身を含む): 506217600

約数和(自身を除く): 286308940

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 53, 61, 76, 95, 106, 122, 179, 190, 212, 244, 265, 305, 358, 380, 530, 610, 716, 895, 1007, 1060, 1159, 1220, 1790, 2014, 2318, 3233, 3401, 3580, 4028, 4636, 5035, 5795, 6466, 6802, 9487, 10070, 10919, 11590, 12932, 13604, 16165, 17005, 18974, 20140, 21838, 23180, 32330, 34010, 37948, 43676, 47435, 54595, 61427, 64660, 68020, 94870, 109190, 122854, 180253, 189740, 207461, 218380, 245708, 307135, 360506, 414922, 578707, 614270, 721012, 829844, 901265, 1037305, 1157414, 1228540, 1802530, 2074610, 2314828, 2893535, 3605060, 4149220, 5787070, 10995433, 11574140, 21990866, 43981732, 54977165, 109954330, 219908660]

約数ペア:

[(1, 219908660), (2, 109954330), (4, 54977165), (5, 43981732), (10, 21990866), (19, 11574140), (20, 10995433), (38, 5787070), (53, 4149220), (61, 3605060), (76, 2893535), (95, 2314828), (106, 2074610), (122, 1802530), (179, 1228540), (190, 1157414), (212, 1037305), (244, 901265), (265, 829844), (305, 721012), (358, 614270), (380, 578707), (530, 414922), (610, 360506), (716, 307135), (895, 245708), (1007, 218380), (1060, 207461), (1159, 189740), (1220, 180253), (1790, 122854), (2014, 109190), (2318, 94870), (3233, 68020), (3401, 64660), (3580, 61427), (4028, 54595), (4636, 47435), (5035, 43676), (5795, 37948), (6466, 34010), (6802, 32330), (9487, 23180), (10070, 21838), (10919, 20140), (11590, 18974), (12932, 17005), (13604, 16165)]