39988760

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{271}}^1$

素因数の和:337

約数の個数: 128

約数和(自身を含む): 112803840

約数和(自身を除く): 72815080

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 17, 20, 28, 31, 34, 35, 40, 56, 62, 68, 70, 85, 119, 124, 136, 140, 155, 170, 217, 238, 248, 271, 280, 310, 340, 434, 476, 527, 542, 595, 620, 680, 868, 952, 1054, 1084, 1085, 1190, 1240, 1355, 1736, 1897, 2108, 2168, 2170, 2380, 2635, 2710, 3689, 3794, 4216, 4340, 4607, 4760, 5270, 5420, 7378, 7588, 8401, 8680, 9214, 9485, 10540, 10840, 14756, 15176, 16802, 18428, 18445, 18970, 21080, 23035, 29512, 32249, 33604, 36856, 36890, 37940, 42005, 46070, 58807, 64498, 67208, 73780, 75880, 84010, 92140, 117614, 128996, 142817, 147560, 161245, 168020, 184280, 235228, 257992, 285634, 294035, 322490, 336040, 470456, 571268, 588070, 644980, 714085, 999719, 1142536, 1176140, 1289960, 1428170, 1999438, 2352280, 2856340, 3998876, 4998595, 5712680, 7997752, 9997190, 19994380, 39988760]

約数ペア:

[(1, 39988760), (2, 19994380), (4, 9997190), (5, 7997752), (7, 5712680), (8, 4998595), (10, 3998876), (14, 2856340), (17, 2352280), (20, 1999438), (28, 1428170), (31, 1289960), (34, 1176140), (35, 1142536), (40, 999719), (56, 714085), (62, 644980), (68, 588070), (70, 571268), (85, 470456), (119, 336040), (124, 322490), (136, 294035), (140, 285634), (155, 257992), (170, 235228), (217, 184280), (238, 168020), (248, 161245), (271, 147560), (280, 142817), (310, 128996), (340, 117614), (434, 92140), (476, 84010), (527, 75880), (542, 73780), (595, 67208), (620, 64498), (680, 58807), (868, 46070), (952, 42005), (1054, 37940), (1084, 36890), (1085, 36856), (1190, 33604), (1240, 32249), (1355, 29512), (1736, 23035), (1897, 21080), (2108, 18970), (2168, 18445), (2170, 18428), (2380, 16802), (2635, 15176), (2710, 14756), (3689, 10840), (3794, 10540), (4216, 9485), (4340, 9214), (4607, 8680), (4760, 8401), (5270, 7588), (5420, 7378)]