40989560

素因数分解:

$2^3\times 5^1\times {\mathrm{61}}^1\times {\mathrm{107}}^1\times {\mathrm{157}}^1$

素因数の和:336

約数の個数: 64

約数和(自身を含む): 95217120

約数和(自身を除く): 54227560

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 61, 107, 122, 157, 214, 244, 305, 314, 428, 488, 535, 610, 628, 785, 856, 1070, 1220, 1256, 1570, 2140, 2440, 3140, 4280, 6280, 6527, 9577, 13054, 16799, 19154, 26108, 32635, 33598, 38308, 47885, 52216, 65270, 67196, 76616, 83995, 95770, 130540, 134392, 167990, 191540, 261080, 335980, 383080, 671960, 1024739, 2049478, 4098956, 5123695, 8197912, 10247390, 20494780, 40989560]

約数ペア:

[(1, 40989560), (2, 20494780), (4, 10247390), (5, 8197912), (8, 5123695), (10, 4098956), (20, 2049478), (40, 1024739), (61, 671960), (107, 383080), (122, 335980), (157, 261080), (214, 191540), (244, 167990), (305, 134392), (314, 130540), (428, 95770), (488, 83995), (535, 76616), (610, 67196), (628, 65270), (785, 52216), (856, 47885), (1070, 38308), (1220, 33598), (1256, 32635), (1570, 26108), (2140, 19154), (2440, 16799), (3140, 13054), (4280, 9577), (6280, 6527)]