19717880

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{5417}}^1$

素因数の和:5448

約数の個数: 64

約数和(自身を含む): 54613440

約数和(自身を除く): 34895560

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 20, 26, 28, 35, 40, 52, 56, 65, 70, 91, 104, 130, 140, 182, 260, 280, 364, 455, 520, 728, 910, 1820, 3640, 5417, 10834, 21668, 27085, 37919, 43336, 54170, 70421, 75838, 108340, 140842, 151676, 189595, 216680, 281684, 303352, 352105, 379190, 492947, 563368, 704210, 758380, 985894, 1408420, 1516760, 1971788, 2464735, 2816840, 3943576, 4929470, 9858940, 19717880]

約数ペア:

[(1, 19717880), (2, 9858940), (4, 4929470), (5, 3943576), (7, 2816840), (8, 2464735), (10, 1971788), (13, 1516760), (14, 1408420), (20, 985894), (26, 758380), (28, 704210), (35, 563368), (40, 492947), (52, 379190), (56, 352105), (65, 303352), (70, 281684), (91, 216680), (104, 189595), (130, 151676), (140, 140842), (182, 108340), (260, 75838), (280, 70421), (364, 54170), (455, 43336), (520, 37919), (728, 27085), (910, 21668), (1820, 10834), (3640, 5417)]