287689640

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{3181}}^1$

素因数の和:3235

約数の個数: 128

約数和(自身を含む): 824774400

約数和(自身を除く): 537084760

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 17, 19, 20, 28, 34, 35, 38, 40, 56, 68, 70, 76, 85, 95, 119, 133, 136, 140, 152, 170, 190, 238, 266, 280, 323, 340, 380, 476, 532, 595, 646, 665, 680, 760, 952, 1064, 1190, 1292, 1330, 1615, 2261, 2380, 2584, 2660, 3181, 3230, 4522, 4760, 5320, 6362, 6460, 9044, 11305, 12724, 12920, 15905, 18088, 22267, 22610, 25448, 31810, 44534, 45220, 54077, 60439, 63620, 89068, 90440, 108154, 111335, 120878, 127240, 178136, 216308, 222670, 241756, 270385, 302195, 378539, 423073, 432616, 445340, 483512, 540770, 604390, 757078, 846146, 890680, 1027463, 1081540, 1208780, 1514156, 1692292, 1892695, 2054926, 2115365, 2163080, 2417560, 3028312, 3384584, 3785390, 4109852, 4230730, 5137315, 7192241, 7570780, 8219704, 8461460, 10274630, 14384482, 15141560, 16922920, 20549260, 28768964, 35961205, 41098520, 57537928, 71922410, 143844820, 287689640]

約数ペア:

[(1, 287689640), (2, 143844820), (4, 71922410), (5, 57537928), (7, 41098520), (8, 35961205), (10, 28768964), (14, 20549260), (17, 16922920), (19, 15141560), (20, 14384482), (28, 10274630), (34, 8461460), (35, 8219704), (38, 7570780), (40, 7192241), (56, 5137315), (68, 4230730), (70, 4109852), (76, 3785390), (85, 3384584), (95, 3028312), (119, 2417560), (133, 2163080), (136, 2115365), (140, 2054926), (152, 1892695), (170, 1692292), (190, 1514156), (238, 1208780), (266, 1081540), (280, 1027463), (323, 890680), (340, 846146), (380, 757078), (476, 604390), (532, 540770), (595, 483512), (646, 445340), (665, 432616), (680, 423073), (760, 378539), (952, 302195), (1064, 270385), (1190, 241756), (1292, 222670), (1330, 216308), (1615, 178136), (2261, 127240), (2380, 120878), (2584, 111335), (2660, 108154), (3181, 90440), (3230, 89068), (4522, 63620), (4760, 60439), (5320, 54077), (6362, 45220), (6460, 44534), (9044, 31810), (11305, 25448), (12724, 22610), (12920, 22267), (15905, 18088)]