19635760

素因数分解:

$2^4\times 5^1\times {\mathrm{71}}^1\times {\mathrm{3457}}^1$

素因数の和:3541

約数の個数: 40

約数和(自身を含む): 46309536

約数和(自身を除く): 26673776

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 71, 80, 142, 284, 355, 568, 710, 1136, 1420, 2840, 3457, 5680, 6914, 13828, 17285, 27656, 34570, 55312, 69140, 138280, 245447, 276560, 490894, 981788, 1227235, 1963576, 2454470, 3927152, 4908940, 9817880, 19635760]

約数ペア:

[(1, 19635760), (2, 9817880), (4, 4908940), (5, 3927152), (8, 2454470), (10, 1963576), (16, 1227235), (20, 981788), (40, 490894), (71, 276560), (80, 245447), (142, 138280), (284, 69140), (355, 55312), (568, 34570), (710, 27656), (1136, 17285), (1420, 13828), (2840, 6914), (3457, 5680)]