19408790

素因数分解:

$2^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{137}}^1\times {\mathrm{457}}^1$

素因数の和:632

約数の個数: 32

約数和(自身を含む): 36405504

約数和(自身を除く): 16996714

約数列:

[1, 2, 5, 10, 31, 62, 137, 155, 274, 310, 457, 685, 914, 1370, 2285, 4247, 4570, 8494, 14167, 21235, 28334, 42470, 62609, 70835, 125218, 141670, 313045, 626090, 1940879, 3881758, 9704395, 19408790]

約数ペア:

[(1, 19408790), (2, 9704395), (5, 3881758), (10, 1940879), (31, 626090), (62, 313045), (137, 141670), (155, 125218), (274, 70835), (310, 62609), (457, 42470), (685, 28334), (914, 21235), (1370, 14167), (2285, 8494), (4247, 4570)]